public Builder clearContent() {
      if (sourceCase_ == 1) {
        sourceCase_ = 0;
        source_ = null;
        onChanged();
      }
      return this;
    }
<pre>
Document's content represented as a stream of bytes.
</pre>

<code>bytes content = 1;</code>

@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/DocumentInputConfig.java