define_attribute_method_pattern

# File activemodel/lib/active_model/attribute_methods.rb, line 320
      def define_attribute_method_pattern(pattern, attr_name, owner,, as,, override: false) # :nodoc:
        canonical_method_name = pattern.method_name(attr_name)
        public_method_name = pattern.method_name(as)

        # If defining a regular attribute method, we don't override methods that are explictly
        # defined in parrent classes.
        if instance_method_already_implemented?(public_method_name)
          # However, for `alias_attribute`, we always define the method.
          # We check for override second because `instance_method_already_implemented?`
          # also check for dangerous methods.
          return unless override
        end

        generate_method = "define_method_#{pattern.proxy_target}"

        if respond_to?(generate_method, true)
          send(generate_method, attr_name.to_s, owner: owner, as: as)
        else
          define_proxy_call(
            owner,
            canonical_method_name,
            pattern.proxy_target,
            pattern.parameters,
            attr_name.to_s,
            namespace: :active_model_proxy,
            as: public_method_name
          )
        end
      end