[Python] How do I add default parameters to functions when using type hinting?

If I have a function like this:

def foo(name, opts={}):
pass


And I want to add type hints to the parameters, how do I do it? The way I assumed gives me a syntax error:

def foo(name: str, opts={}: dict) -> str:
pass


The following doesn't throw a syntax error but it doesn't seem like the intuitive way to handle this case:

def foo(name: str, opts: dict={}) -> str:
pass


I can't find anything in the typing documentation or on a Google search.

Edit: I didn't know how default arguments worked in Python, but for the sake of this question, I will keep the examples above. In general it's much better to do the following:

def foo(name: str, opts: dict=None) -> str:
if not opts:
opts={}
pass

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