public Task <bool> ExistsAsync(SpecificationBase <T> spec, CancellationToken cancellationToken = default)
{
return(ApplySpecification(spec.UseStatelessQuery())
.AnyAsync(cancellationToken));
}
public bool Exists(SpecificationBase <T> spec)
{
return(ApplySpecification(spec.UseStatelessQuery())
.Any());
}