parameters: (self, value)
docstring: Remove an element. If not a member, raise a KeyError.
docstring_summary: Remove an element. If not a member, raise a KeyError.
docstring_tokens: Remove an element . If not a member raise a KeyError .
function: def remove(self, value):
          """Remove an element. If not a member, raise a KeyError."""
          if value not in self:
              raise KeyError(value)
          self.discard(value)
function_tokens: def remove ( self , value ) : if value not in self : raise KeyError ( value ) self . discard ( value )