public Builder clearInputUri() {
      inputUri_ = getDefaultInstance().getInputUri();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
Required. Source data URI. For example, `gs://my_bucket/my_object`.
</pre>

<code>string input_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/GcsSource.java