diff --git a/packages/google-cloud-iot/src/v1/gapic_metadata.json b/packages/google-cloud-iot/src/v1/gapic_metadata.json
new file mode 100644
index 00000000000..28ab3c5db9b
--- /dev/null
+++ b/packages/google-cloud-iot/src/v1/gapic_metadata.json
@@ -0,0 +1,221 @@
+{
+  "schema": "1.0",
+  "comment": "This file maps proto services/RPCs to the corresponding library clients/methods",
+  "language": "typescript",
+  "protoPackage": "google.cloud.iot.v1",
+  "libraryPackage": "@google-cloud/iot",
+  "services": {
+    "DeviceManager": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "DeviceManagerClient",
+          "rpcs": {
+            "CreateDeviceRegistry": {
+              "methods": [
+                "createDeviceRegistry"
+              ]
+            },
+            "GetDeviceRegistry": {
+              "methods": [
+                "getDeviceRegistry"
+              ]
+            },
+            "UpdateDeviceRegistry": {
+              "methods": [
+                "updateDeviceRegistry"
+              ]
+            },
+            "DeleteDeviceRegistry": {
+              "methods": [
+                "deleteDeviceRegistry"
+              ]
+            },
+            "CreateDevice": {
+              "methods": [
+                "createDevice"
+              ]
+            },
+            "GetDevice": {
+              "methods": [
+                "getDevice"
+              ]
+            },
+            "UpdateDevice": {
+              "methods": [
+                "updateDevice"
+              ]
+            },
+            "DeleteDevice": {
+              "methods": [
+                "deleteDevice"
+              ]
+            },
+            "ModifyCloudToDeviceConfig": {
+              "methods": [
+                "modifyCloudToDeviceConfig"
+              ]
+            },
+            "ListDeviceConfigVersions": {
+              "methods": [
+                "listDeviceConfigVersions"
+              ]
+            },
+            "ListDeviceStates": {
+              "methods": [
+                "listDeviceStates"
+              ]
+            },
+            "SetIamPolicy": {
+              "methods": [
+                "setIamPolicy"
+              ]
+            },
+            "GetIamPolicy": {
+              "methods": [
+                "getIamPolicy"
+              ]
+            },
+            "TestIamPermissions": {
+              "methods": [
+                "testIamPermissions"
+              ]
+            },
+            "SendCommandToDevice": {
+              "methods": [
+                "sendCommandToDevice"
+              ]
+            },
+            "BindDeviceToGateway": {
+              "methods": [
+                "bindDeviceToGateway"
+              ]
+            },
+            "UnbindDeviceFromGateway": {
+              "methods": [
+                "unbindDeviceFromGateway"
+              ]
+            },
+            "ListDeviceRegistries": {
+              "methods": [
+                "listDeviceRegistries",
+                "listDeviceRegistriesStream",
+                "listDeviceRegistriesAsync"
+              ]
+            },
+            "ListDevices": {
+              "methods": [
+                "listDevices",
+                "listDevicesStream",
+                "listDevicesAsync"
+              ]
+            }
+          }
+        },
+        "grpc-fallback": {
+          "libraryClient": "DeviceManagerClient",
+          "rpcs": {
+            "CreateDeviceRegistry": {
+              "methods": [
+                "createDeviceRegistry"
+              ]
+            },
+            "GetDeviceRegistry": {
+              "methods": [
+                "getDeviceRegistry"
+              ]
+            },
+            "UpdateDeviceRegistry": {
+              "methods": [
+                "updateDeviceRegistry"
+              ]
+            },
+            "DeleteDeviceRegistry": {
+              "methods": [
+                "deleteDeviceRegistry"
+              ]
+            },
+            "CreateDevice": {
+              "methods": [
+                "createDevice"
+              ]
+            },
+            "GetDevice": {
+              "methods": [
+                "getDevice"
+              ]
+            },
+            "UpdateDevice": {
+              "methods": [
+                "updateDevice"
+              ]
+            },
+            "DeleteDevice": {
+              "methods": [
+                "deleteDevice"
+              ]
+            },
+            "ModifyCloudToDeviceConfig": {
+              "methods": [
+                "modifyCloudToDeviceConfig"
+              ]
+            },
+            "ListDeviceConfigVersions": {
+              "methods": [
+                "listDeviceConfigVersions"
+              ]
+            },
+            "ListDeviceStates": {
+              "methods": [
+                "listDeviceStates"
+              ]
+            },
+            "SetIamPolicy": {
+              "methods": [
+                "setIamPolicy"
+              ]
+            },
+            "GetIamPolicy": {
+              "methods": [
+                "getIamPolicy"
+              ]
+            },
+            "TestIamPermissions": {
+              "methods": [
+                "testIamPermissions"
+              ]
+            },
+            "SendCommandToDevice": {
+              "methods": [
+                "sendCommandToDevice"
+              ]
+            },
+            "BindDeviceToGateway": {
+              "methods": [
+                "bindDeviceToGateway"
+              ]
+            },
+            "UnbindDeviceFromGateway": {
+              "methods": [
+                "unbindDeviceFromGateway"
+              ]
+            },
+            "ListDeviceRegistries": {
+              "methods": [
+                "listDeviceRegistries",
+                "listDeviceRegistriesStream",
+                "listDeviceRegistriesAsync"
+              ]
+            },
+            "ListDevices": {
+              "methods": [
+                "listDevices",
+                "listDevicesStream",
+                "listDevicesAsync"
+              ]
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/packages/google-cloud-iot/synth.metadata b/packages/google-cloud-iot/synth.metadata
index 25dc3d168a5..8f488f5b8e9 100644
--- a/packages/google-cloud-iot/synth.metadata
+++ b/packages/google-cloud-iot/synth.metadata
@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-iot.git",
-        "sha": "84ca7b6f4d6a696713e02a1f9d4b3aebb30a5589"
+        "sha": "9b3e46869005647261814d196dd7abaeb609d40e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "2f019bf70bfe06f1e2af1b04011b0a2405190e43",
-        "internalRef": "343202295"
+        "sha": "d189e871205fea665a9648f7c4676f027495ccaf",
+        "internalRef": "345596855"
       }
     },
     {