private void setCreationDate(long value) {
        bitField0_ |= 0x00000002;
        creationDate_ = value;
    }
<code>optional int64 creation_date = 2;</code>

@param value The creationDate to set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/user/UserFriendRequest.java