```ruby
module YARD
  module Generators::Helpers
    module MethodHelper
      def format_args(object)
        if object.signature
          h object.signature[/#{Regexp.quote object.name.to_s}\s*(.*)/, 1]
        else
          h "def #{object.name}"
        end
      end
      
      def format_return_types(object)
        return unless object.has_tag?(:return) && object.tag(:return).types
        return if object.tag(:return).types.empty?
        format_types [object.tag(:return).types.first], false
      end
      
      def format_block(object)
        if object.has_tag?(:yieldparam)
          h "{|" + object.tags(:yieldparam).map {|t| t.name }.join(", ") + "| ... }"
        else
          ""
        end
      end
    end
  end
end```

Update format_args to use object.parameters instead of object.signature parsing
user
```ruby
module YARD
  module Generators::Helpers
    module MethodHelper
      def format_args(object)
        unless object.parameters.empty?
          args = object.parameters.map {|n, v| v ? "#{n} = #{v}" : n.to_s }.join(", ")
          h("(#{args})")
        else
          ""
        end
      end
      
      def format_return_types(object)
        return unless object.has_tag?(:return) && object.tag(:return).types
        return if object.tag(:return).types.empty?
        format_types [object.tag(:return).types.first], false
      end
      
      def format_block(object)
        if object.has_tag?(:yieldparam)
          h "{|" + object.tags(:yieldparam).map {|t| t.name }.join(", ") + "| ... }"
        else
          ""
        end
      end
    end
  end
end```
assistant