chore: Update discovery artifacts (#1587)

## Deleted keys were detected in the following stable discovery artifacts:
bigquery v2 https://github.com/googleapis/google-api-python-client/commit/faedd49d24634e1646e15cb79a983391a6938faa
container v1 https://github.com/googleapis/google-api-python-client/commit/3c92c46132922d77598527fc98780edca5978ce2
gameservices v1 https://github.com/googleapis/google-api-python-client/commit/ea5f2216765868a1d6e48995f23b74709ca5ebef

## Deleted keys were detected in the following pre-stable discovery artifacts:
container v1beta1 https://github.com/googleapis/google-api-python-client/commit/3c92c46132922d77598527fc98780edca5978ce2
gameservices v1beta https://github.com/googleapis/google-api-python-client/commit/ea5f2216765868a1d6e48995f23b74709ca5ebef

## Discovery Artifact Change Summary:
feat(adexchangebuyer2): update the api https://github.com/googleapis/google-api-python-client/commit/49432a596a9d2e0a014afb2c57cc0ceec37aa403
feat(bigquery): update the api https://github.com/googleapis/google-api-python-client/commit/faedd49d24634e1646e15cb79a983391a6938faa
feat(chromemanagement): update the api https://github.com/googleapis/google-api-python-client/commit/89fc0743cff2c64a438339003fc1c8fdf99938dd
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/8c2010464ec7a8aa6ffe8a044ae44ea0ab199f45
feat(compute): update the api https://github.com/googleapis/google-api-python-client/commit/c2acfdbefef85f8a4696ae467bd61d05db25cf31
feat(contactcenterinsights): update the api https://github.com/googleapis/google-api-python-client/commit/04ba8ef034ac1fd69e8e641c585e762e19078806
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/3c92c46132922d77598527fc98780edca5978ce2
feat(content): update the api https://github.com/googleapis/google-api-python-client/commit/037b9e1d5c9865af22a3c70dc44542ea3ce547dc
feat(datafusion): update the api https://github.com/googleapis/google-api-python-client/commit/fc6d716e71875ea73036e576bbaafb2826e01e1d
feat(dlp): update the api https://github.com/googleapis/google-api-python-client/commit/08353cbe37fc4c0dcc1311efead553797067417e
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/7974abc07dceffbc9fdb5365b706ed5e1a9899fc
feat(firebaseappcheck): update the api https://github.com/googleapis/google-api-python-client/commit/13220f0704b0d5b954520307a6702efead926e5e
feat(gameservices): update the api https://github.com/googleapis/google-api-python-client/commit/ea5f2216765868a1d6e48995f23b74709ca5ebef
feat(gkehub): update the api https://github.com/googleapis/google-api-python-client/commit/f4ae68ff69c32b5708f1e5f735cb03f3184f7650
feat(healthcare): update the api https://github.com/googleapis/google-api-python-client/commit/5c430ab79811ae3565a83d57ba06e0d48560f791
feat(monitoring): update the api https://github.com/googleapis/google-api-python-client/commit/3ad9f05ae340101c6016e4ceeef52661d0c01e21
feat(networkmanagement): update the api https://github.com/googleapis/google-api-python-client/commit/992b9f851e871feb796485e6af936a3d05899e4e
feat(osconfig): update the api https://github.com/googleapis/google-api-python-client/commit/972e716c233348d6e5d686f3718607a42e7d728a
feat(oslogin): update the api https://github.com/googleapis/google-api-python-client/commit/1ba23c68428c3c07a778f25dc9fc10998022c414
feat(paymentsresellersubscription): update the api https://github.com/googleapis/google-api-python-client/commit/cc7fd94a993048d6ca7cc34e42c4536df6eeb93d
feat(recaptchaenterprise): update the api https://github.com/googleapis/google-api-python-client/commit/2da594c083639420e285d70d26483e46df9fa1a0
feat(redis): update the api https://github.com/googleapis/google-api-python-client/commit/c16b96450466eb72e8122fc8aca0ce010a113350
feat(run): update the api https://github.com/googleapis/google-api-python-client/commit/c502728bfd31e520d4f5f06cc763dc2316cbb221
feat(searchconsole): update the api https://github.com/googleapis/google-api-python-client/commit/eede698004d718213b315b3728793a967a92e87b
feat(speech): update the api https://github.com/googleapis/google-api-python-client/commit/9f0148f2f0f035b9e3c7d73dbd95a8f961ef3eb1
feat(tagmanager): update the api https://github.com/googleapis/google-api-python-client/commit/fe4351bca507192a682440fa52f50eb98cef4434
feat(vmmigration): update the api https://github.com/googleapis/google-api-python-client/commit/d8afe7c7e0a556d31dc904e8878c1bf884a375af
diff --git a/docs/dyn/compute_alpha.backendServices.html b/docs/dyn/compute_alpha.backendServices.html
index 2769027..68309e4 100644
--- a/docs/dyn/compute_alpha.backendServices.html
+++ b/docs/dyn/compute_alpha.backendServices.html
@@ -172,6 +172,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -268,7 +271,7 @@
               ],
             },
             "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-            "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+            "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
             "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
             "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
             "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -706,6 +709,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -771,6 +777,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -857,7 +866,7 @@
       ],
     },
     "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
     "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -1411,7 +1420,7 @@
       ],
     },
     "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
     "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -1792,6 +1801,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -1885,7 +1897,7 @@
           ],
         },
         "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-        "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+        "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
         "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
         "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
         "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -2320,7 +2332,7 @@
       ],
     },
     "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
     "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -2701,6 +2713,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -2772,6 +2787,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -3054,6 +3072,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
@@ -3166,7 +3187,7 @@
       ],
     },
     "cacheMode": "A String", # Specifies the cache setting for all responses from this backend. The possible values are: USE_ORIGIN_HEADERS Requires the origin to set valid caching headers to cache content. Responses without these headers will not be cached at Google's edge, and will require a full trip to the origin on every request, potentially impacting performance and increasing load on the origin server. FORCE_CACHE_ALL Cache all content, ignoring any "private", "no-store" or "no-cache" directives in Cache-Control response headers. Warning: this may result in Cloud CDN caching private, per-user (user identifiable) content. CACHE_ALL_STATIC Automatically cache static content, including common image formats, media (video and audio), and web assets (JavaScript and CSS). Requests and responses that are marked as uncacheable, as well as dynamic content (including HTML), will not be cached.
-    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 86400s (1 day).
+    "clientTtl": 42, # Specifies a separate client (e.g. browser client) maximum TTL. This is used to clamp the max-age (or Expires) value sent to the client. With FORCE_CACHE_ALL, the lesser of client_ttl and default_ttl is used for the response max-age directive, along with a "public" directive. For cacheable content in CACHE_ALL_STATIC mode, client_ttl clamps the max-age from the origin (if specified), or else sets the response max-age directive to the lesser of the client_ttl and default_ttl, and also ensures a "public" cache-control directive is present. If a client TTL is not specified, a default value (1 hour) will be used. The maximum allowed value is 31,622,400s (1 year).
     "defaultTtl": 42, # Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Setting a TTL of "0" means "always revalidate". The value of defaultTTL cannot be set to a value greater than that of maxTTL, but can be equal. When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "maxTtl": 42, # Specifies the maximum allowed TTL for cached content served by this origin. Cache directives that attempt to set a max-age or s-maxage higher than this, or an Expires header more than maxTTL seconds in the future will be capped at the value of maxTTL, as if it were the value of an s-maxage Cache-Control directive. Headers sent to the client will not be modified. Setting a TTL of "0" means "always revalidate". The maximum allowed value is 31,622,400s (1 year), noting that infrequently accessed objects may be evicted from the cache before the defined TTL.
     "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order to apply fine-grained caching for common errors or redirects. This can reduce the load on your origin and improve end-user experience by reducing response latency. When the cache mode is set to CACHE_ALL_STATIC or USE_ORIGIN_HEADERS, negative caching applies to responses with the specified response code that lack any Cache-Control, Expires, or Pragma: no-cache directives. When the cache mode is set to FORCE_CACHE_ALL, negative caching applies to all responses with the specified response code, and override any caching headers. By default, Cloud CDN will apply the following default TTLs to these status codes: HTTP 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m HTTP 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s HTTP 405 (Method Not Found), 421 (Misdirected Request), 501 (Not Implemented): 60s. These defaults can be overridden in negative_caching_policy.
@@ -3547,6 +3568,9 @@
   "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
   "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
   "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
+  "metadata": { # [Output Only] Service-specific metadata attached to this operation.
+    "a_key": "", # Properties of the object. Contains field @type with type URL.
+  },
   "name": "A String", # [Output Only] Name of the operation.
   "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
   "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.