async def post(self,body: ParseExpressionPostRequestBody, request_configuration: Optional[RequestConfiguration[QueryParameters]] = None) -> Optional[ParseExpressionResponse]:
        """
        Parse a given string expression into an attributeMappingSource object. For more information about expressions, see Writing Expressions for Attribute Mappings in Microsoft Entra ID.
        param body: The request body
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[ParseExpressionResponse]
        Find more info here: https://learn.microsoft.com/graph/api/synchronization-synchronizationschema-parseexpression?view=graph-rest-1.0
        """
        if body is None:
            raise TypeError("body cannot be null.")
        request_info = self.to_post_request_information(
            body, 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.parse_expression_response import ParseExpressionResponse

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

        Parse a given string expression into an attributeMappingSource object. For more information about expressions, see Writing Expressions for Attribute Mappings in Microsoft Entra ID.
        param body: The request body
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[ParseExpressionResponse]
        Find more info here: https://learn.microsoft.com/graph/api/synchronization-synchronizationschema-parseexpression?view=graph-rest-1.0
        
msgraph/generated/applications/item/synchronization/jobs/item/schema/parse_expression/parse_expression_request_builder.py