chore: Update discovery artifacts (#1472)

## Deleted keys were detected in the following stable discovery artifacts:
monitoring v1 https://github.com/googleapis/google-api-python-client/commit/75a5ced2b372723c21d45b172dd69e0bb91c5509

## Deleted keys were detected in the following pre-stable discovery artifacts:
ideahub v1alpha https://github.com/googleapis/google-api-python-client/commit/24483a4f512922f809fc8352b9407e606856b0e2
speech v1p1beta1 https://github.com/googleapis/google-api-python-client/commit/689fff21696add03b8c3ab843374b6bd2dd3cc16

## Discovery Artifact Change Summary:
feat(androidpublisher): update the api https://github.com/googleapis/google-api-python-client/commit/cf67afc22e94f856773895a4e603e7a9a6bfa20b
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/995336984e11fb9f91308d14a68faf8f3091d1fa
feat(appengine): update the api https://github.com/googleapis/google-api-python-client/commit/eb7a571470cef08641224558a7bd8eaa07a41bad
feat(chromepolicy): update the api https://github.com/googleapis/google-api-python-client/commit/5654776fdc8361aa0703a7dca8069b576a1b2f73
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/437e37f1c36268464f90e075ffeaef61580de237
feat(cloudkms): update the api https://github.com/googleapis/google-api-python-client/commit/ebd3f49f78738792032e431b73233ae0c458bae3
feat(containeranalysis): update the api https://github.com/googleapis/google-api-python-client/commit/d446928f941d858022f0e1a1911bbf185920159d
feat(dialogflow): update the api https://github.com/googleapis/google-api-python-client/commit/0feb05616eb28db7c35e128ebbf338b63446b8cf
fix(fcm): update the api https://github.com/googleapis/google-api-python-client/commit/f1dd412cad2a2cdd1863bb2942cf07fc6a42b649
feat(ideahub): update the api https://github.com/googleapis/google-api-python-client/commit/24483a4f512922f809fc8352b9407e606856b0e2
feat(metastore): update the api https://github.com/googleapis/google-api-python-client/commit/897beb3754da50e117292f5954265076804acb7f
feat(monitoring): update the api https://github.com/googleapis/google-api-python-client/commit/75a5ced2b372723c21d45b172dd69e0bb91c5509
feat(osconfig): update the api https://github.com/googleapis/google-api-python-client/commit/c8b511a21f7fc7f2471d5f7a3b2d3760e4f8a629
feat(speech): update the api https://github.com/googleapis/google-api-python-client/commit/689fff21696add03b8c3ab843374b6bd2dd3cc16
feat(storagetransfer): update the api https://github.com/googleapis/google-api-python-client/commit/24564836842f792e9373ea505d97e775f64a5960
diff --git a/googleapiclient/discovery_cache/documents/ml.v1.json b/googleapiclient/discovery_cache/documents/ml.v1.json
index 7d73a39..b92e8ab 100644
--- a/googleapiclient/discovery_cache/documents/ml.v1.json
+++ b/googleapiclient/discovery_cache/documents/ml.v1.json
@@ -1486,7 +1486,7 @@
       }
     }
   },
-  "revision": "20210720",
+  "revision": "20210729",
   "rootUrl": "https://ml.googleapis.com/",
   "schemas": {
     "GoogleApi__HttpBody": {
@@ -2255,7 +2255,7 @@
           "additionalProperties": {
             "type": "string"
           },
-          "description": "The web URIs for the training job. Currently for debug terminal access to the job. Only set for in-progress hyperparameter tuning trials with web access enabled.",
+          "description": "URIs for accessing [interactive shells](https://cloud.google.com/ai-platform/training/docs/monitor-debug-interactive-shell) (one URI for each training node). Only available if this trial is part of a hyperparameter tuning job and the job's training_input.enable_web_access is `true`. The keys are names of each node in the training job; for example, `master-replica-0` for the master node, `worker-replica-0` for the first worker, and `ps-replica-0` for the first parameter server. The values are the URIs for each node's interactive shell.",
           "type": "object"
         }
       },
@@ -3224,7 +3224,7 @@
           "type": "array"
         },
         "enableWebAccess": {
-          "description": "Optional. Whether to enable web access for the training job.",
+          "description": "Optional. Whether you want AI Platform Training to enable [interactive shell access](https://cloud.google.com/ai-platform/training/docs/monitor-debug-interactive-shell) to training containers. If set to `true`, you can access interactive shells at the URIs given by TrainingOutput.web_access_uris or HyperparameterOutput.web_access_uris (within TrainingOutput.trials).",
           "type": "boolean"
         },
         "encryptionConfig": {
@@ -3389,7 +3389,7 @@
           "additionalProperties": {
             "type": "string"
           },
-          "description": "Output only. The web URIs for the training job. Currently for debug terminal access to the job.",
+          "description": "Output only. URIs for accessing [interactive shells](https://cloud.google.com/ai-platform/training/docs/monitor-debug-interactive-shell) (one URI for each training node). Only available if training_input.enable_web_access is `true`. The keys are names of each node in the training job; for example, `master-replica-0` for the master node, `worker-replica-0` for the first worker, and `ps-replica-0` for the first parameter server. The values are the URIs for each node's interactive shell.",
           "readOnly": true,
           "type": "object"
         }