Derive Macro ValidateNonNullable 

#[derive(ValidateNonNullable)]
{
    // Attributes available to this derive:
    #[queryweave]
    #[validate_non_nullable]
    #[equivalent_field]
}

The non-nullable validation of a merge patch DTO mirroring a domain merge patch model; see queryweave_codegen::validate_non_nullable.

#[validate_non_nullable(mirrors = path)], plus the validation library’s flag, e.g. validator.