diff --git a/noxfile.py b/noxfile.py
index 50e11600..ac831388 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -72,6 +72,7 @@ def default(session):
     session.run(
         "py.test",
         "--quiet",
+        "--cov=google.cloud.documentai",
         "--cov=google.cloud",
         "--cov=tests.unit",
         "--cov-append",
diff --git a/synth.metadata b/synth.metadata
index 20e87b58..8c82e9ff 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,27 +1,41 @@
 {
-  "updateTime": "2020-01-31T23:26:38.909167Z",
+  "updateTime": "2020-02-19T02:23:28.267436Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.44.4",
-        "dockerImage": "googleapis/artman@sha256:19e945954fc960a4bdfee6cb34695898ab21a8cf0bac063ee39b91f00a1faec8"
+        "version": "0.45.0",
+        "dockerImage": "googleapis/artman@sha256:6aec9c34db0e4be221cdaf6faba27bdc07cfea846808b3d3b964dfce3a9a0f9b"
+      }
+    },
+    {
+      "git": {
+        "name": ".",
+        "remote": "https://github.com/googleapis/python-documentai.git",
+        "sha": "e295b32d360294c2c5af51c75150fdffcfe7cc23"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "c1468702f9b17e20dd59007c0804a089b83197d2",
-        "internalRef": "292626173",
-        "log": "c1468702f9b17e20dd59007c0804a089b83197d2\nSynchronize new proto/yaml changes.\n\nPiperOrigin-RevId: 292626173\n\nffdfa4f55ab2f0afc11d0eb68f125ccbd5e404bd\nvision: v1p3beta1 publish annotations and retry config\n\nPiperOrigin-RevId: 292605599\n\n78f61482cd028fc1d9892aa5d89d768666a954cd\nvision: v1p1beta1 publish annotations and retry config\n\nPiperOrigin-RevId: 292605125\n\n60bb5a294a604fd1778c7ec87b265d13a7106171\nvision: v1p2beta1 publish annotations and retry config\n\nPiperOrigin-RevId: 292604980\n\n3bcf7aa79d45eb9ec29ab9036e9359ea325a7fc3\nvision: v1p4beta1 publish annotations and retry config\n\nPiperOrigin-RevId: 292604656\n\n2717b8a1c762b26911b45ecc2e4ee01d98401b28\nFix dataproc artman client library generation.\n\nPiperOrigin-RevId: 292555664\n\n7ac66d9be8a7d7de4f13566d8663978c9ee9dcd7\nAdd Dataproc Autoscaling API to V1.\n\nPiperOrigin-RevId: 292450564\n\n5d932b2c1be3a6ef487d094e3cf5c0673d0241dd\n- Improve documentation\n- Add a client_id field to StreamingPullRequest\n\nPiperOrigin-RevId: 292434036\n\neaff9fa8edec3e914995ce832b087039c5417ea7\nmonitoring: v3 publish annotations and client retry config\n\nPiperOrigin-RevId: 292425288\n\n70958bab8c5353870d31a23fb2c40305b050d3fe\nBigQuery Storage Read API v1 clients.\n\nPiperOrigin-RevId: 292407644\n\n7a15e7fe78ff4b6d5c9606a3264559e5bde341d1\nUpdate backend proto for Google Cloud Endpoints\n\nPiperOrigin-RevId: 292391607\n\n3ca2c014e24eb5111c8e7248b1e1eb833977c83d\nbazel: Add --flaky_test_attempts=3 argument to prevent CI failures caused by flaky tests\n\nPiperOrigin-RevId: 292382559\n\n9933347c1f677e81e19a844c2ef95bfceaf694fe\nbazel:Integrate latest protoc-java-resource-names-plugin changes (fix for PyYAML dependency in bazel rules)\n\nPiperOrigin-RevId: 292376626\n\nb835ab9d2f62c88561392aa26074c0b849fb0bd3\nasset: v1p2beta1 add client config annotations\n\n* remove unintentionally exposed RPCs\n* remove messages relevant to removed RPCs\n\nPiperOrigin-RevId: 292369593\n\n"
+        "sha": "ce4f4c21d9dd2bfab18873a80449b9d9851efde8",
+        "internalRef": "295861722",
+        "log": "ce4f4c21d9dd2bfab18873a80449b9d9851efde8\nasset: v1p1beta1 remove SearchResources and SearchIamPolicies\n\nPiperOrigin-RevId: 295861722\n\ncb61d6c2d070b589980c779b68ffca617f789116\nasset: v1p1beta1 remove SearchResources and SearchIamPolicies\n\nPiperOrigin-RevId: 295855449\n\nab2685d8d3a0e191dc8aef83df36773c07cb3d06\nfix: Dataproc v1 - AutoscalingPolicy annotation\n\nThis adds the second resource name pattern to the\nAutoscalingPolicy resource.\n\nCommitter: @lukesneeringer\nPiperOrigin-RevId: 295738415\n\n8a1020bf6828f6e3c84c3014f2c51cb62b739140\nUpdate cloud asset api v1p4beta1.\n\nPiperOrigin-RevId: 295286165\n\n5cfa105206e77670369e4b2225597386aba32985\nAdd service control related proto build rule.\n\nPiperOrigin-RevId: 295262088\n\nee4dddf805072004ab19ac94df2ce669046eec26\nmonitoring v3: Add prefix \"https://cloud.google.com/\" into the link for global access\ncl 295167522, get ride of synth.py hacks\n\nPiperOrigin-RevId: 295238095\n\nd9835e922ea79eed8497db270d2f9f85099a519c\nUpdate some minor docs changes about user event proto\n\nPiperOrigin-RevId: 295185610\n\n5f311e416e69c170243de722023b22f3df89ec1c\nfix: use correct PHP package name in gapic configuration\n\nPiperOrigin-RevId: 295161330\n\n6cdd74dcdb071694da6a6b5a206e3a320b62dd11\npubsub: v1 add client config annotations and retry config\n\nPiperOrigin-RevId: 295158776\n\n5169f46d9f792e2934d9fa25c36d0515b4fd0024\nAdded cloud asset api v1p4beta1.\n\nPiperOrigin-RevId: 295026522\n\n56b55aa8818cd0a532a7d779f6ef337ba809ccbd\nFix: Resource annotations for CreateTimeSeriesRequest and ListTimeSeriesRequest should refer to valid resources. TimeSeries is not a named resource.\n\nPiperOrigin-RevId: 294931650\n\n0646bc775203077226c2c34d3e4d50cc4ec53660\nRemove unnecessary languages from bigquery-related artman configuration files.\n\nPiperOrigin-RevId: 294809380\n\n8b78aa04382e3d4147112ad6d344666771bb1909\nUpdate backend.proto for schemes and protocol\n\nPiperOrigin-RevId: 294788800\n\n80b8f8b3de2359831295e24e5238641a38d8488f\nAdds artman config files for bigquerystorage endpoints v1beta2, v1alpha2, v1\n\nPiperOrigin-RevId: 294763931\n\n2c17ac33b226194041155bb5340c3f34733f1b3a\nAdd parameter to sample generated for UpdateInstance. Related to https://github.com/googleapis/python-redis/issues/4\n\nPiperOrigin-RevId: 294734008\n\nd5e8a8953f2acdfe96fb15e85eb2f33739623957\nMove bigquery datatransfer to gapic v2.\n\nPiperOrigin-RevId: 294703703\n\nefd36705972cfcd7d00ab4c6dfa1135bafacd4ae\nfix: Add two annotations that we missed.\n\nPiperOrigin-RevId: 294664231\n\n8a36b928873ff9c05b43859b9d4ea14cd205df57\nFix: Define the \"bigquery.googleapis.com/Table\" resource in the BigQuery Storage API (v1beta2).\n\nPiperOrigin-RevId: 294459768\n\nc7a3caa2c40c49f034a3c11079dd90eb24987047\nFix: Define the \"bigquery.googleapis.com/Table\" resource in the BigQuery Storage API (v1).\n\nPiperOrigin-RevId: 294456889\n\n5006247aa157e59118833658084345ee59af7c09\nFix: Make deprecated fields optional\nFix: Deprecate SetLoggingServiceRequest.zone in line with the comments\nFeature: Add resource name method signatures where appropriate\n\nPiperOrigin-RevId: 294383128\n\neabba40dac05c5cbe0fca3a35761b17e372036c4\nFix: C# and PHP package/namespace capitalization for BigQuery Storage v1.\n\nPiperOrigin-RevId: 294382444\n\nf8d9a858a7a55eba8009a23aa3f5cc5fe5e88dde\nfix: artman configuration file for bigtable-admin\n\nPiperOrigin-RevId: 294322616\n\n0f29555d1cfcf96add5c0b16b089235afbe9b1a9\nAPI definition for (not-yet-launched) GCS gRPC.\n\nPiperOrigin-RevId: 294321472\n\nfcc86bee0e84dc11e9abbff8d7c3529c0626f390\nfix: Bigtable Admin v2\n\nChange LRO metadata from PartialUpdateInstanceMetadata\nto UpdateInstanceMetadata. (Otherwise, it will not build.)\n\nPiperOrigin-RevId: 294264582\n\n6d9361eae2ebb3f42d8c7ce5baf4bab966fee7c0\nrefactor: Add annotations to Bigtable Admin v2.\n\nPiperOrigin-RevId: 294243406\n\nad7616f3fc8e123451c8b3a7987bc91cea9e6913\nFix: Resource type in CreateLogMetricRequest should use logging.googleapis.com.\nFix: ListLogEntries should have a method signature for convenience of calling it.\n\nPiperOrigin-RevId: 294222165\n\n63796fcbb08712676069e20a3e455c9f7aa21026\nFix: Remove extraneous resource definition for cloudkms.googleapis.com/CryptoKey.\n\nPiperOrigin-RevId: 294176658\n\ne7d8a694f4559201e6913f6610069cb08b39274e\nDepend on the latest gapic-generator and resource names plugin.\n\nThis fixes the very old an very annoying bug: https://github.com/googleapis/gapic-generator/pull/3087\n\nPiperOrigin-RevId: 293903652\n\n806b2854a966d55374ee26bb0cef4e30eda17b58\nfix: correct capitalization of Ruby namespaces in SecurityCenter V1p1beta1\n\nPiperOrigin-RevId: 293903613\n\n1b83c92462b14d67a7644e2980f723112472e03a\nPublish annotations and grpc service config for Logging API.\n\nPiperOrigin-RevId: 293893514\n\ne46f761cd6ec15a9e3d5ed4ff321a4bcba8e8585\nGenerate the Bazel build file for recommendengine public api\n\nPiperOrigin-RevId: 293710856\n\n68477017c4173c98addac0373950c6aa9d7b375f\nMake `language_code` optional for UpdateIntentRequest and BatchUpdateIntentsRequest.\n\nThe comments and proto annotations describe this parameter as optional.\n\nPiperOrigin-RevId: 293703548\n\n16f823f578bca4e845a19b88bb9bc5870ea71ab2\nAdd BUILD.bazel files for managedidentities API\n\nPiperOrigin-RevId: 293698246\n\n2f53fd8178c9a9de4ad10fae8dd17a7ba36133f2\nAdd v1p1beta1 config file\n\nPiperOrigin-RevId: 293696729\n\n052b274138fce2be80f97b6dcb83ab343c7c8812\nAdd source field for user event and add field behavior annotations\n\nPiperOrigin-RevId: 293693115\n\n1e89732b2d69151b1b3418fff3d4cc0434f0dded\ndatacatalog: v1beta1 add three new RPCs to gapic v1beta1 config\n\nPiperOrigin-RevId: 293692823\n\n9c8bd09bbdc7c4160a44f1fbab279b73cd7a2337\nchange the name of AccessApproval service to AccessApprovalAdmin\n\nPiperOrigin-RevId: 293690934\n\n2e23b8fbc45f5d9e200572ca662fe1271bcd6760\nAdd ListEntryGroups method, add http bindings to support entry group tagging, and update some comments.\n\nPiperOrigin-RevId: 293666452\n\n0275e38a4ca03a13d3f47a9613aac8c8b0d3f1f2\nAdd proto_package field to managedidentities API. It is needed for APIs that still depend on artman generation.\n\nPiperOrigin-RevId: 293643323\n\n4cdfe8278cb6f308106580d70648001c9146e759\nRegenerating public protos for Data Catalog to add new Custom Type Entry feature.\n\nPiperOrigin-RevId: 293614782\n\n45d2a569ab526a1fad3720f95eefb1c7330eaada\nEnable client generation for v1 ManagedIdentities API.\n\nPiperOrigin-RevId: 293515675\n\n2c17086b77e6f3bcf04a1f65758dfb0c3da1568f\nAdd the Actions on Google common types (//google/actions/type/*).\n\nPiperOrigin-RevId: 293478245\n\n781aadb932e64a12fb6ead7cd842698d99588433\nDialogflow weekly v2/v2beta1 library update:\n- Documentation updates\nImportant updates are also posted at\nhttps://cloud.google.com/dialogflow/docs/release-notes\n\nPiperOrigin-RevId: 293443396\n\ne2602608c9138c2fca24162720e67f9307c30b95\nDialogflow weekly v2/v2beta1 library update:\n- Documentation updates\nImportant updates are also posted at\nhttps://cloud.google.com/dialogflow/docs/release-notes\n\nPiperOrigin-RevId: 293442964\n\nc8aef82028d06b7992278fa9294c18570dc86c3d\nAdd cc_proto_library and cc_grpc_library targets for Bigtable protos.\n\nAlso fix indentation of cc_grpc_library targets in Spanner and IAM protos.\n\nPiperOrigin-RevId: 293440538\n\ne2faab04f4cb7f9755072330866689b1943a16e9\ncloudtasks: v2 replace non-standard retry params in gapic config v2\n\nPiperOrigin-RevId: 293424055\n\ndfb4097ea628a8470292c6590a4313aee0c675bd\nerrorreporting: v1beta1 add legacy artman config for php\n\nPiperOrigin-RevId: 293423790\n\nb18aed55b45bfe5b62476292c72759e6c3e573c6\nasset: v1p1beta1 updated comment for `page_size` limit.\n\nPiperOrigin-RevId: 293421386\n\nc9ef36b7956d9859a2fc86ad35fcaa16958ab44f\nbazel: Refactor CI build scripts\n\nPiperOrigin-RevId: 293387911\n\na8ed9d921fdddc61d8467bfd7c1668f0ad90435c\nfix: set Ruby module name for OrgPolicy\n\nPiperOrigin-RevId: 293257997\n\n6c7d28509bd8315de8af0889688ee20099594269\nredis: v1beta1 add UpgradeInstance and connect_mode field to Instance\n\nPiperOrigin-RevId: 293242878\n\nae0abed4fcb4c21f5cb67a82349a049524c4ef68\nredis: v1 add connect_mode field to Instance\n\nPiperOrigin-RevId: 293241914\n\n3f7a0d29b28ee9365771da2b66edf7fa2b4e9c56\nAdds service config definition for bigqueryreservation v1beta1\n\nPiperOrigin-RevId: 293234418\n\n0c88168d5ed6fe353a8cf8cbdc6bf084f6bb66a5\naddition of BUILD & configuration for accessapproval v1\n\nPiperOrigin-RevId: 293219198\n\n39bedc2e30f4778ce81193f6ba1fec56107bcfc4\naccessapproval: v1 publish protos\n\nPiperOrigin-RevId: 293167048\n\n69d9945330a5721cd679f17331a78850e2618226\nAdd file-level `Session` resource definition\n\nPiperOrigin-RevId: 293080182\n\nf6a1a6b417f39694275ca286110bc3c1ca4db0dc\nAdd file-level `Session` resource definition\n\nPiperOrigin-RevId: 293080178\n\n29d40b78e3dc1579b0b209463fbcb76e5767f72a\nExpose managedidentities/v1beta1/ API for client library usage.\n\nPiperOrigin-RevId: 292979741\n\na22129a1fb6e18056d576dfb7717aef74b63734a\nExpose managedidentities/v1/ API for client library usage.\n\nPiperOrigin-RevId: 292968186\n\nb5cbe4a4ba64ab19e6627573ff52057a1657773d\nSecurityCenter v1p1beta1: move file-level option on top to workaround protobuf.js bug.\n\nPiperOrigin-RevId: 292647187\n\nb224b317bf20c6a4fbc5030b4a969c3147f27ad3\nAdds API definitions for bigqueryreservation v1beta1.\n\nPiperOrigin-RevId: 292634722\n\n"
+      }
+    },
+    {
+      "git": {
+        "name": "synthtool",
+        "remote": "rpc://devrel/cloud/libraries/tools/autosynth",
+        "sha": "b4b7af4a16a07b40bfd8dcdda89f9f193ff4e2ed"
       }
     },
     {
       "template": {
         "name": "python_split_library",
         "origin": "synthtool.gcp",
-        "version": "2019.10.17"
+        "version": "2020.2.4"
       }
     }
   ],