storageRenamePartRPC       = grid.NewSingleHandler[*RenamePartHandlerParams, grid.NoPayload](grid.HandlerRenamePart, func() *RenamePartHandlerParams { return &RenamePartHandlerParams{} }, grid.NewNoPayload)
	storageStatVolRPC          = grid.NewSingleHandler[*grid.MSS, *VolInfo](grid.HandlerStatVol, grid.NewMSS, func() *VolInfo { return &VolInfo{} })

			if r != rZero {
				//nolint:staticcheck // SA6002 IT IS A GENERIC VALUE!
				pool.Put(r)
			}
		}
}

// NewSingleHandler creates a typed handler that can provide Marshal/Unmarshal.
// Use Register to register a server handler.
// Use Call to initiate a clientside call.
func NewSingleHandler[Req, Resp RoundTripper](h HandlerID, newReq func() Req, newResp func() Resp) *SingleHandler[Req, Resp] {
	s := SingleHandler[Req, Resp]{id: h}

	remote := grid.Managers[1]

	// 1: Echo
	h1 := NewSingleHandler[*MSS, *MSS](handlerTest, NewMSS, NewMSS)
	// Handles incoming requests, returns a response
	handler1 := func(req *MSS) (resp *MSS, err *RemoteErr) {
		resp = h1.NewResponse()
		maps.Copy((*resp), *req)
		return resp, nil
	}
	// Return error
	h2 := NewSingleHandler[*MSS, *MSS](handlerTest2, NewMSS, NewMSS)

		})
	}
}

func benchmarkGridRequests(b *testing.B, n int) {
	defer testlogger.T.SetErrorTB(b)()
	errFatal := func(err error) {
		b.Helper()
		if err != nil {
			b.Fatal(err)
		}
	}
	rpc := NewSingleHandler[*testRequest, *testResponse](handlerTest2, newTestRequest, newTestResponse)
	grid, err := SetupTestGrid(n)
	errFatal(err)
	b.Cleanup(grid.Cleanup)
	// Create n managers.
	for _, remote := range grid.Managers {