public Builder mergeFrom(
          com.google.storagetransfer.v1.proto.TransferTypes.GoogleServiceAccount other) {
        if (other
            == com.google.storagetransfer.v1.proto.TransferTypes.GoogleServiceAccount
                .getDefaultInstance()) return this;
        if (!other.getAccountEmail().isEmpty()) {
          accountEmail_ = other.accountEmail_;
          bitField0_ |= 0x00000001;
          onChanged();
        }
        if (!other.getSubjectId().isEmpty()) {
          subjectId_ = other.subjectId_;
          bitField0_ |= 0x00000002;
          onChanged();
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }
<pre>
Google service account
</pre>

Protobuf type {@code google.storagetransfer.v1.GoogleServiceAccount}
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java