@java.lang.Override
    public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) {
            return size;
        }

        size = 0;
        if (code_ != 0) {
            size += com.google.protobuf.CodedOutputStream.computeUInt32Size(3, code_);
        }
        if (!com.google.protobuf.GeneratedMessage.isStringEmpty(digit_)) {
            size += com.google.protobuf.GeneratedMessage.computeStringSize(4, digit_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
    }
<code>string digit = 4;</code>

@return The bytes for digit.
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/models/SipDTMF.java