def __init__(self, configuration=None, header_name=None, header_value=None,
                 cookie=None):
        if configuration is None:
            configuration = Configuration()
        self.configuration = configuration

        self.pool = ThreadPool()
        self.rest_client = rest.RESTClientObject(configuration)
        self.default_headers = {}
        if header_name is not None:
            self.default_headers[header_name] = header_value
        self.cookie = cookie
        # Set default User-Agent.
        self.user_agent = 'Swagger-Codegen/6.0.0-snapshot/python'
    def __init__(self,
                 configuration=None,
                 header_name=None,
                 header_value=None,
                 cookie=None,
                 pool_threads=None):
        if configuration is None:
            configuration = Configuration()
        self.configuration = configuration
        self.pool_threads = pool_threads

        self.rest_client = rest.RESTClientObject(configuration)
        self.default_headers = {}
        if header_name is not None:
            self.default_headers[header_name] = header_value
        self.cookie = cookie
        # Set default User-Agent.
        self.user_agent = 'OpenAPI-Generator/10.0.1-snapshot/python'