src/streamlink/plugin/api/http_session.py
def parse_headers(self, headers):
        """Parses a semi-colon delimited list of headers.

        Example: foo=bar;baz=qux
        """
        for name, value in _parse_keyvalue_list(headers):
            self.headers[name] = value
def parse_headers(self, headers):
        """Parses a semi-colon delimited list of headers.

        Example: foo=bar;baz=qux
        """
        for name, value in _parse_keyvalue_list(headers):
            self.headers[name] = value
Parses a semi-colon delimited list of headers.

        Example: foo=bar;baz=qux