symbol @var{function}.
@cindex function cell in autoload
-if @var{function} already has non-void function definition that is not
+If @var{function} already has a non-void function definition that is not
an autoload object, this function does nothing and returns @code{nil}.
Otherwise, it constructs an autoload object (@pxref{Autoload Type}),
and stores it as the function definition for @var{function}. The