(Maybe b/c I'm from a C++ world)
I want to verify some python variable is

`list(string)` or `list(dict(int, string))` or `SomethingIterable(string)`

Is there a simple and unified way to do it?
(Instead of writing customized code to iterate and verify each instance..)

I emphasize that I understand in Python `list` can have elements of different types, which is exactly the reason why I ask how to verify a `list` which are composed by just a certain type e.g. `string`.