@java.lang.Override
  public com.google.protobuf.Parser<OperationMetadata> getParserForType() {
    return PARSER;
  }
<pre>
API version.
</pre>

<code>string api_version = 7;</code>

@param value The bytes for apiVersion to set.
@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java