GDTEST_RUNTIME_ERROR
>> SCRIPT ERROR
>> on function: test()
>> runtime/errors/gd_utility_function_wrong_arg.gd
>> 3
>> Error calling GDScript utility function "len()": Value of type 'Color' can't provide a length.
GDTEST_RUNTIME_ERROR
>> SCRIPT ERROR
>> on function: test()
>> runtime/errors/gd_utility_function_wrong_arg.gd
>> 3
>> Error calling GDScript utility function "len()": Value of type 'Color' can't provide a length.