my question is about the sintaxys that is used by python , i have an example of code and i'm trying to understand it , here below the code and then my question:
class myclass():
    def __init__(self):
        # dictionary 
        self.dictionary = {}
    def function1(self):
        for key_ex in self.dictionary.keys():
            _ = self.function_example(key_ex)
        return self
    def function_example(self) -> bool:
        # do something return true or false
        return True
Into the function1 the assignment _ = self.function_example(key_ex) is something that i don't understand. Somebody can give some explanation of this please ?
