code: def first_or_create(query_attrs = {}, resource_attrs = {})
        conditions(query_attrs)
        klass = Parse::Model.find_class self.table
        if klass.blank?
          raise ArgumentError, "Parse model with class name #{self.table} is not registered."
        end
        hash_constraints = constraints(true)
        klass.first_or_create(hash_constraints, resource_attrs)
      end
docs: Supporting the `first_or_create` class method to be used in scope chaining with queries.
   @!visibility private