public Task <ServiceResult <RequiredResponseDto> > RequiredAsync(RequiredRequestDto request, CancellationToken cancellationToken = default) =>
 TrySendRequestAsync(ConformanceApiHttpMapping.RequiredMapping, request, cancellationToken);
 public override async Task <ServiceResult <RequiredResponseDto> > RequiredAsync(RequiredRequestDto request, CancellationToken cancellationToken = default) =>
 ServiceResult.Success(m_serializer.Clone(m_requiredResponse));
 /// <inheritdoc />
 public Task <ServiceResult <RequiredResponseDto> > RequiredAsync(RequiredRequestDto request, CancellationToken cancellationToken = default) =>
 Task.FromResult(Execute <RequiredResponseDto>(request));