async def get(self,request_configuration: Optional[RequestConfiguration[OnAuthenticationMethodLoadStartRequestBuilderGetQueryParameters]] = None) -> Optional[OnAuthenticationMethodLoadStartHandler]:
        """
        Required. The configuration for what to invoke when authentication methods are ready to be presented to the user. Must have at least one identity provider linked.  Supports $filter (eq). See support for filtering on user flows for syntax information.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[OnAuthenticationMethodLoadStartHandler]
        """
        request_info = self.to_get_request_information(
            request_configuration
        )
        from ......models.o_data_errors.o_data_error import ODataError

        error_mapping: dict[str, type[ParsableFactory]] = {
            "XXX": ODataError,
        }
        if not self.request_adapter:
            raise Exception("Http core is null") 
        from ......models.on_authentication_method_load_start_handler import OnAuthenticationMethodLoadStartHandler

        return await self.request_adapter.send_async(request_info, OnAuthenticationMethodLoadStartHandler, error_mapping)

        Required. The configuration for what to invoke when authentication methods are ready to be presented to the user. Must have at least one identity provider linked.  Supports $filter (eq). See support for filtering on user flows for syntax information.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[OnAuthenticationMethodLoadStartHandler]
        
msgraph/generated/identity/authentication_events_flows/item/graph_external_users_self_service_sign_up_events_flow/on_authentication_method_load_start/on_authentication_method_load_start_request_builder.py