parameters: (self, key)
return_statement: return self._dao.count(signature=key) > 0
docstring: @type  key: L{Crash} signature.
          @param key: Heuristic signature of the crash to get.
  
          @rtype:  bool
          @return: C{True} if a matching L{Crash} object is in the container.
docstring_summary: @type  key: L{Crash} signature.
          @param key: Heuristic signature of the crash to get.
docstring_tokens: @type key : L { Crash } signature . @param key : Heuristic signature of the crash to get .
function: def has_key(self, key):
          """
          @type  key: L{Crash} signature.
          @param key: Heuristic signature of the crash to get.
  
          @rtype:  bool
          @return: C{True} if a matching L{Crash} object is in the container.
          """
          return self._dao.count(signature=key) > 0
function_tokens: def has_key ( self , key ) : return self . _dao . count ( signature = key ) > 0