diff --git a/googleapiclient/discovery_cache/documents/container.v1beta1.json b/googleapiclient/discovery_cache/documents/container.v1beta1.json
index 628074f..a7b5ee8 100644
--- a/googleapiclient/discovery_cache/documents/container.v1beta1.json
+++ b/googleapiclient/discovery_cache/documents/container.v1beta1.json
@@ -2484,7 +2484,7 @@
       }
     }
   },
-  "revision": "20210413",
+  "revision": "20210419",
   "rootUrl": "https://container.googleapis.com/",
   "schemas": {
     "AcceleratorConfig": {
@@ -3119,6 +3119,10 @@
           "$ref": "AddonsConfig",
           "description": "Configurations for the various addons available to run in the cluster."
         },
+        "desiredAutopilot": {
+          "$ref": "Autopilot",
+          "description": "The desired Autopilot configuration for the cluster."
+        },
         "desiredBinaryAuthorization": {
           "$ref": "BinaryAuthorization",
           "description": "The desired configuration options for the Binary Authorization feature."
@@ -5464,7 +5468,7 @@
             "The caller does not have permission to execute the specified operation. `PERMISSION_DENIED` must not be used for rejections caused by exhausting some resource (use `RESOURCE_EXHAUSTED` instead for those errors). `PERMISSION_DENIED` must not be used if the caller can not be identified (use `UNAUTHENTICATED` instead for those errors). This error code does not imply the request is valid or the requested entity exists or satisfies other pre-conditions. HTTP Mapping: 403 Forbidden",
             "The request does not have valid authentication credentials for the operation. HTTP Mapping: 401 Unauthorized",
             "Some resource has been exhausted, perhaps a per-user quota, or perhaps the entire file system is out of space. HTTP Mapping: 429 Too Many Requests",
-            "The operation was rejected because the system is not in a state required for the operation's execution. For example, the directory to be deleted is non-empty, an rmdir operation is applied to a non-directory, etc. Service implementors can use the following guidelines to decide between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`: (a) Use `UNAVAILABLE` if the client can retry just the failing call. (b) Use `ABORTED` if the client should retry at a higher level (e.g., when a client-specified test-and-set fails, indicating the client should restart a read-modify-write sequence). (c) Use `FAILED_PRECONDITION` if the client should not retry until the system state has been explicitly fixed. E.g., if an \"rmdir\" fails because the directory is non-empty, `FAILED_PRECONDITION` should be returned since the client should not retry unless the files are deleted from the directory. HTTP Mapping: 400 Bad Request",
+            "The operation was rejected because the system is not in a state required for the operation's execution. For example, the directory to be deleted is non-empty, an rmdir operation is applied to a non-directory, etc. Service implementors can use the following guidelines to decide between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`: (a) Use `UNAVAILABLE` if the client can retry just the failing call. (b) Use `ABORTED` if the client should retry at a higher level. For example, when a client-specified test-and-set fails, indicating the client should restart a read-modify-write sequence. (c) Use `FAILED_PRECONDITION` if the client should not retry until the system state has been explicitly fixed. For example, if an \"rmdir\" fails because the directory is non-empty, `FAILED_PRECONDITION` should be returned since the client should not retry unless the files are deleted from the directory. HTTP Mapping: 400 Bad Request",
             "The operation was aborted, typically due to a concurrency issue such as a sequencer check failure or transaction abort. See the guidelines above for deciding between `FAILED_PRECONDITION`, `ABORTED`, and `UNAVAILABLE`. HTTP Mapping: 409 Conflict",
             "The operation was attempted past the valid range. E.g., seeking or reading past end-of-file. Unlike `INVALID_ARGUMENT`, this error indicates a problem that may be fixed if the system state changes. For example, a 32-bit file system will generate `INVALID_ARGUMENT` if asked to read at an offset that is not in the range [0,2^32-1], but it will generate `OUT_OF_RANGE` if asked to read from an offset past the current file size. There is a fair bit of overlap between `FAILED_PRECONDITION` and `OUT_OF_RANGE`. We recommend using `OUT_OF_RANGE` (the more specific error) when it applies so that callers who are iterating through a space can easily look for an `OUT_OF_RANGE` error to detect when they are done. HTTP Mapping: 400 Bad Request",
             "The operation is not implemented or is not supported/enabled in this service. HTTP Mapping: 501 Not Implemented",
@@ -5670,7 +5674,7 @@
           "description": "The release channel of the version. If empty, it means a non-channel release."
         },
         "resource": {
-          "description": "Optional. Optional relative path to the resource. For example, the relative path of the node pool.",
+          "description": "Optional relative path to the resource. For example, the relative path of the node pool.",
           "type": "string"
         },
         "resourceType": {