def create_from_discriminator_value(parse_node: ParseNode) -> ParseExpressionPostRequestBody:
        """
        Creates a new instance of the appropriate class based on discriminator value
        param parse_node: The parse node to use to read the discriminator value and create the object
        Returns: ParseExpressionPostRequestBody
        """
        if parse_node is None:
            raise TypeError("parse_node cannot be null.")
        return ParseExpressionPostRequestBody()

        Creates a new instance of the appropriate class based on discriminator value
        param parse_node: The parse node to use to read the discriminator value and create the object
        Returns: ParseExpressionPostRequestBody
        
msgraph/generated/applications/item/synchronization/templates/item/schema/parse_expression/parse_expression_post_request_body.py