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            Returns the result type of erase_key, given the sequence
            and key types.
          
template< typename Sequence, typename Key > struct erase_key { typedef unspecified type; };
Table 1.98. Parameters
| Parameter | Requirement | Description | 
|---|---|---|
| 
                       | A model of Forward Sequence and Associative Sequence | Operation's argument | 
| 
                       | Any type | Key type | 
result_of::erase_key<Sequence, Key>::type
Return type: A model of Forward Sequence and Associative Sequence.
            Semantics: Returns a sequence with the
            elements of Sequence,
            except those with key Key.
          
Constant.
#include <boost/fusion/algorithm/transformation/erase_key.hpp> #include <boost/fusion/include/erase_key.hpp>