Autogenerated update (2019-03-27)

Update:
- dialogflow_v2
- iap_v1
- oauth2_v1
- plus_domains_v1
- speech_v1
- speech_v1p1beta1
- sqladmin_v1beta4
- testing_v1

generated/google/apis/speech_v1/classes.rb

@@ -400,7 +400,7 @@ module Google
         # 16000 is optimal. For best results, set the sampling rate of the audio
         # source to 16000 Hz. If that's not possible, use the native sample rate of
         # the audio source (instead of re-sampling).
-        # This field is optional for `FLAC`,  `WAV`. and 'MP3' audio files, and is
+        # This field is optional for FLAC and WAV audio files, but is
         # required for all other audio formats. For details, see AudioEncoding.
         # Corresponds to the JSON property `sampleRateHertz`
         # @return [Fixnum]

generated/google/apis/speech_v1/service.rb

@@ -241,6 +241,8 @@ module Google
         # google.longrunning.Operations interface. Returns either an
         # `Operation.error` or an `Operation.response` which contains
         # a `LongRunningRecognizeResponse` message.
+        # For more information on asynchronous speech recognition, see the
+        # [how-to](https://cloud.google.com/speech-to-text/docs/async-recognize).
         # @param [Google::Apis::SpeechV1::LongRunningRecognizeRequest] long_running_recognize_request_object
         # @param [String] fields
         #   Selector specifying which fields to include in a partial response.