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        A type trait that determines whether a require_concept
        expression is well-formed.
      
template< typename T, typename Property> struct can_require_concept : public integral_constant< bool, automatically_determined >
        Class template can_require_concept
        is a trait that is derived from true_type
        if the expression asio::require_concept(std::declval<T>(),
        std::declval<Property>())
        is well formed; otherwise false_type.
      
        Header: asio/require_concept.hpp
      
        Convenience header: asio.hpp