docs: Fix formatting of request arg in docstring (#487)

* docs: Fix formatting of request arg in docstring

chore: Update gapic-generator-python to v1.9.1
PiperOrigin-RevId: 518604533

Source-Link: googleapis/googleapis@8a085ae

Source-Link: googleapis/googleapis-gen@b2ab4b0
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

packages/google-cloud-translate/google/cloud/translate_v3/services/translation_service/transports/rest.py

@@ -958,7 +958,6 @@ def __call__(
                 request (~.translation_service.DetectLanguageRequest):
                     The request object. The request message for language
                 detection.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1150,7 +1149,6 @@ def __call__(
                 request (~.translation_service.GetSupportedLanguagesRequest):
                     The request object. The request message for discovering
                 supported languages.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1431,7 +1429,6 @@ def __call__(
                 request (~.translation_service.TranslateTextRequest):
                     The request object. The request message for synchronous
                 translation.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.

packages/google-cloud-translate/google/cloud/translate_v3beta1/services/translation_service/transports/rest.py

@@ -958,7 +958,6 @@ def __call__(
                 request (~.translation_service.DetectLanguageRequest):
                     The request object. The request message for language
                 detection.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1150,7 +1149,6 @@ def __call__(
                 request (~.translation_service.GetSupportedLanguagesRequest):
                     The request object. The request message for discovering
                 supported languages.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1431,7 +1429,6 @@ def __call__(
                 request (~.translation_service.TranslateTextRequest):
                     The request object. The request message for synchronous
                 translation.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.