void resize( size_type count, T value = T() );

hasher hash_function() const;

reverse_iterator rbegin();

std::pair<iterator,iterator> equal_range( const Key& key

template< class... Args > void emplace_back( Args&&

bool empty() const;

std::multimap::value_compare value_comp() const;

void push_front( const T& value );

template <class M> pair<iterator, bool> insert_or_assign(const

void pop();