Write a function all_present that takes in two parameters - one a string and another a list - and returns True only if every element in the list appears in the string. For example, if you pass ls1 and str1 (see code cell below for examples) to the function all_present, it will return True; if you pass ls2 and str1, it will return False; if you pass ls3 and str1, it will also return False. Please note that not every element in the list may be a string data type. You can use the built-in function in python isinstance(variable name, data type) to check whether the variable belongs to a particular data type