Python 3.5+ allows passing multiple sets of keyword arguments ("kwargs") to a function within a single call, using the `"**"` syntax.

multi_kwargs.py

>>> def process_data(a, b, c, d):
>>>    print(a, b, c, d)

>>> x = {'a': 1, 'b': 2}
>>> y = {'c': 3, 'd': 4}

>>> process_data(**x, **y)
1 2 3 4

>>> process_data(**x, c=23, d=42)
1 2 23 42