@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (hasConfig()) {
      hash = (37 * hash) + CONFIG_FIELD_NUMBER;
      hash = (53 * hash) + getConfig().hashCode();
    }
    if (hasConfigMask()) {
      hash = (37 * hash) + CONFIG_MASK_FIELD_NUMBER;
      hash = (53 * hash) + getConfigMask().hashCode();
    }
    switch (audioSourceCase_) {
      case 1:
        hash = (37 * hash) + URI_FIELD_NUMBER;
        hash = (53 * hash) + getUri().hashCode();
        break;
      case 0:
      default:
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
The list of fields in
[config][google.cloud.speech.v2.BatchRecognizeFileMetadata.config] that
override the values in the
[default_recognition_config][google.cloud.speech.v2.Recognizer.default_recognition_config]
of the recognizer during this recognition request. If no mask is provided,
all non-default valued fields in
[config][google.cloud.speech.v2.BatchRecognizeFileMetadata.config] override
the values in the recognizer for this recognition request. If a mask is
provided, only the fields listed in the mask override the config in the
recognizer for this recognition request. If a wildcard (`*`) is provided,
[config][google.cloud.speech.v2.BatchRecognizeFileMetadata.config]
completely overrides and replaces the config in the recognizer for this
recognition request.
</pre>

<code>.google.protobuf.FieldMask config_mask = 5;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/BatchRecognizeFileMetadata.java