chore: re-generated to pick up changes from synthtool (#95)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* fix(python_library): fix external unit test dependencies

I recently submitted https://github.com/googleapis/synthtool/pull/811/files, allowing external dependencies for unit tests. This fixes a small missing comma bug

Source-Author: Daniel Sanche <d.sanche14@gmail.com>
Source-Date: Thu Oct 29 16:58:01 2020 -0700
Source-Repo: googleapis/synthtool
Source-Sha: 6542bd723403513626f61642fc02ddca528409aa
Source-Link: googleapis/synthtool@6542bd7

* chore: add type hint check

Source-Author: Leah E. Cole <6719667+leahecole@users.noreply.github.com>
Source-Date: Wed Nov 4 17:36:32 2020 -0800
Source-Repo: googleapis/synthtool
Source-Sha: 3d3e94c4e02370f307a9a200b0c743c3d8d19f29
Source-Link: googleapis/synthtool@3d3e94c

Author: yoshi-automation

bigquery_storage/quickstart/noxfile.py

@@ -38,6 +38,9 @@
 TEST_CONFIG = {
     # You can opt out from the test for specific Python versions.
     "ignored_versions": ["2.7"],
+    # Old samples are opted out of enforcing Python type hints
+    # All new samples should feature them
+    "enforce_type_hints": False,
     # An envvar key for determining the project id to use. Change it
     # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
     # build specific Cloud project. You can also use your own string
@@ -130,7 +133,10 @@ def _determine_local_import_names(start_dir):
 
 @nox.session
 def lint(session):
-    session.install("flake8", "flake8-import-order")
+    if not TEST_CONFIG["enforce_type_hints"]:
+        session.install("flake8", "flake8-import-order")
+    else:
+        session.install("flake8", "flake8-import-order", "flake8-annotations")
 
     local_names = _determine_local_import_names(".")
     args = FLAKE8_COMMON_ARGS + [

bigquery_storage/to_dataframe/noxfile.py

@@ -38,6 +38,9 @@
 TEST_CONFIG = {
     # You can opt out from the test for specific Python versions.
     "ignored_versions": ["2.7"],
+    # Old samples are opted out of enforcing Python type hints
+    # All new samples should feature them
+    "enforce_type_hints": False,
     # An envvar key for determining the project id to use. Change it
     # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
     # build specific Cloud project. You can also use your own string
@@ -130,7 +133,10 @@ def _determine_local_import_names(start_dir):
 
 @nox.session
 def lint(session):
-    session.install("flake8", "flake8-import-order")
+    if not TEST_CONFIG["enforce_type_hints"]:
+        session.install("flake8", "flake8-import-order")
+    else:
+        session.install("flake8", "flake8-import-order", "flake8-annotations")
 
     local_names = _determine_local_import_names(".")
     args = FLAKE8_COMMON_ARGS + [