@defun type-of obj

Returns a symbol name for the type of @var{obj}.
@end defun

@defun coerce obj result-type

Converts and returns @var{obj} of type @code{char}, @code{number},
@code{string}, @code{symbol}, @code{list}, or @code{vector} to
@var{result-type} (which must be one of these symbols).
@end defun