public Builder mergeFrom(com.google.cloud.tpu.v2.ServiceIdentity other) {
      if (other == com.google.cloud.tpu.v2.ServiceIdentity.getDefaultInstance()) return this;
      if (!other.getEmail().isEmpty()) {
        email_ = other.email_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
The per-product per-project service identity for Cloud TPU service.
</pre>

Protobuf type {@code google.cloud.tpu.v2.ServiceIdentity}
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentity.java