[common/api] regenerate endpoints clients.

common/api/buildbucket/swarmbucket/v1/swarmbucket-api.json

 {
  "kind": "discovery#restDescription",
- "etag": "\"ODRTh3xaRR64wpeXJSlF33HMN-0/ZrajoBQg5xk4oweF9ItteMQuyUw\"",
+ "etag": "\"RnkXbyw9us4_w3H-FU6An0C4oYs/TKnGlqBvxq3Tnq1YZfSctOWiTo4\"",
  "discoveryVersion": "v1",
  "id": "swarmbucket:v1",
  "name": "swarmbucket",
  "version": "v1",
  "title": "Buildbucket-Swarming integration",
  "description": "API specific to swarmbucket.",
  "icons": {
   "x16": "https://www.gstatic.com/images/branding/product/1x/googleg_16dp.png",
   "x32": "https://www.gstatic.com/images/branding/product/1x/googleg_32dp.png"
  },
@@ skipping 51 matching lines @@
  "auth": {
   "oauth2": {
    "scopes": {
     "https://www.googleapis.com/auth/userinfo.email": {
      "description": "View your email address"
     }
    }
   }
  },
  "schemas": {
+  "ApiPubSubCallbackMessage": {
+   "id": "ApiPubSubCallbackMessage",
+   "type": "object",
+   "properties": {
+    "auth_token": {
+     "type": "string"
+    },
+    "topic": {
+     "type": "string"
+    },
+    "user_data": {
+     "type": "string"
+    }
+   }
+  },
+  "ApiPutRequestMessage": {
+   "id": "ApiPutRequestMessage",
+   "type": "object",
+   "properties": {
+    "bucket": {
+     "type": "string"
+    },
+    "client_operation_id": {
+     "type": "string"
+    },
+    "lease_expiration_ts": {
+     "type": "string",
+     "format": "int64"
+    },
+    "parameters_json": {
+     "type": "string"
+    },
+    "pubsub_callback": {
+     "$ref": "ApiPubSubCallbackMessage"
+    },
+    "tags": {
+     "type": "array",
+     "items": {
+      "type": "string"
+     }
+    }
+   }
+  },
   "SwarmingSwarmbucketApiBucketMessage": {
    "id": "SwarmingSwarmbucketApiBucketMessage",
    "type": "object",
    "properties": {
     "builders": {
      "type": "array",
      "items": {
       "$ref": "SwarmingSwarmbucketApiBuilderMessage"
      }
     },
@@ skipping 18 matching lines @@
    "id": "SwarmingSwarmbucketApiGetBuildersResponseMessage",
    "type": "object",
    "properties": {
     "buckets": {
      "type": "array",
      "items": {
       "$ref": "SwarmingSwarmbucketApiBucketMessage"
      }
     }
    }
+  },
+  "SwarmingSwarmbucketApiGetTaskDefinitionRequestMessage": {
+   "id": "SwarmingSwarmbucketApiGetTaskDefinitionRequestMessage",
+   "type": "object",
+   "properties": {
+    "build_request": {
+     "$ref": "ApiPutRequestMessage"
+    }
+   }
+  },
+  "SwarmingSwarmbucketApiGetTaskDefinitionResponseMessage": {
+   "id": "SwarmingSwarmbucketApiGetTaskDefinitionResponseMessage",
+   "type": "object",
+   "properties": {
+    "api_explorer_link": {
+     "type": "string"
+    },
+    "task_definition": {
+     "type": "string"
+    }
+   }
   }
  },
  "methods": {
   "get_builders": {
    "id": "swarmbucket.get_builders",
    "path": "builders",
    "httpMethod": "GET",
    "description": "Returns defined swarmbucket builders. Can be used by code review tool to discover builders.",
    "response": {
     "$ref": "SwarmingSwarmbucketApiGetBuildersResponseMessage"
    },
    "scopes": [
     "https://www.googleapis.com/auth/userinfo.email"
    ]
+  },
+  "get_task_def": {
+   "id": "swarmbucket.get_task_def",
+   "path": "get_task_def",
+   "httpMethod": "POST",
+   "description": "Returns a swarming task definition for a build request.",
+   "request": {
+    "$ref": "SwarmingSwarmbucketApiGetTaskDefinitionRequestMessage",
+    "parameterName": "resource"
+   },
+   "response": {
+    "$ref": "SwarmingSwarmbucketApiGetTaskDefinitionResponseMessage"
+   },
+   "scopes": [
+    "https://www.googleapis.com/auth/userinfo.email"
+   ]
   }
  }
 }