This function is deprecated, please use assert_expr_list()
instead.
Arguments
- arg
A function argument to be checked
- optional
Is the checked argument optional? If set to
FALSE
andarg
isNULL
then an error is thrown
Value
The function throws an error if arg
is not a named list
of expression or
returns the input invisibly otherwise
See also
Other deprecated:
assert_function_param()
,
assert_has_variables()