>>>
abstract class Connection<TLookupResponse, TLookupRequest, TRunQueryResponse, TRunQueryRequest, TBeginTransactionResponse, TBeginTransactionRequest, TCommitResponse, TCommitRequest, TRollbackResponse, TRollbackRequest, TAllocateIdsResponse, TAllocateIdsRequest> {
  // ...
}
<<<
abstract class Connection<
    TLookupResponse,
    TLookupRequest,
    TRunQueryResponse,
    TRunQueryRequest,
    TBeginTransactionResponse,
    TBeginTransactionRequest,
    TCommitResponse,
    TCommitRequest,
    TRollbackResponse,
    TRollbackRequest,
    TAllocateIdsResponse,
    TAllocateIdsRequest> {
  // ...
}