Python
Unpacking tuples as arguments
In Python you can unpack tuples as arguments for functions, and that includes using the returned values of other functions, as seen below:
def function_A():
...
return X,Y
def function_B(Arg1,Arg2,Arg3...)
...
return answer
function_B(*function_A(),Arg3...)
Even several functions can be called and nested this way. For whatever reason python seems to run on less memory and faster the higher the degree of nesting of functions. ¯\_(ツ)_/¯