size_type max_size() const;

std::pair<iterator,bool> insert( const value_type& value

void assign( size_type count, const T& value );

template< size_t I, class T, size_t N > constexpr T& get(

iterator upper_bound( const Key& key ); (1)

iterator begin();

reference back();

std::pair<iterator,bool> insert( const value_type& value

(1)

allocator_type get_allocator() const;