@java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }
<pre>
Output only. The SharePoint file id. Output only.
</pre>

<code>string file_id = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@param value The bytes for fileId to set.
@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SharePointSources.java