@java.lang.Override
    public com.google.protobuf.ByteString getProjectIdBytes() {
      java.lang.Object ref = projectId_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        projectId_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Project in which the subnet exists.
If not set, this project is assumed to be the project for which
the connector create request was issued.
</pre>

<code>string project_id = 2;</code>

@return The bytes for projectId.
java-vpcaccess/proto-google-cloud-vpcaccess-v1/src/main/java/com/google/cloud/vpcaccess/v1/Connector.java