When generating new components using the dash typescript boilerplate, there is an issue with props containing a hyphen. E.g., if I try to generate bindings for a component, which has the "aria-expanded" prop, the generated Python class has "area-expanded" in its parameters, which throws an invalid syntax error, since python variables can't have hyphens.

def __init__(self, children=None, value=Component.REQUIRED, aria-expanded=Component.UNDEFINED, **kwargs):
        self._prop_names = ['children', 'id', 'about', 'accessKey', 'aria-expanded', ]

SyntaxError: invalid syntax