About the request header, how to set multiple request header information, hope to get the answer, preferably covered with examples,thanks about bravado HOT 1 CLOSED

class HeaderAuthenticator(Authenticator):
    """
    @ description：继承Authenticator类，重写认证方法，兼容header能传入多个值的情况
    @ author：Rocky
    @ time: 20230625
    """
    def __init__(
        self,
        host,  # type: str
        header,
    ):
        # type: (...) -> None
        super(HeaderAuthenticator, self).__init__(host)
        self.header = header

    def apply(self, request):
        for key in self.header:
            request.headers.setdefault(key, self.header[key])
        return request