class RuboCop::Cop::Style::KeywordArgumentsMerging


some_method(**opts, **other_opts)
some_method(**opts, foo: true)
# good
some_method(**opts.merge(other_opts))
some_method(**opts.merge(foo: true))
# bad
@example
also leads to shorter and simpler code.
Providing arguments directly is more performant than using ‘merge`, and
directly rather than using `merge`.
When passing an existing hash as keyword arguments, provide additional arguments

def autocorrect(corrector, kwsplat_node, hash_node, other_hash_node) 

def autocorrect(corrector, kwsplat_node, hash_node, other_hash_node)
  other_hash_node_replacement =
    other_hash_node.map do |node|
      if node.hash_type?
        if node.braces?
          node.source[1...-1]
        else
          node.source
        end
      else
        "**#{node.source}"
      end
    end.join(', ')
  corrector.replace(kwsplat_node, "**#{hash_node.source}, #{other_hash_node_replacement}")
end

def on_kwsplat(node) 

def on_kwsplat(node)
  return unless (ancestor = node.parent&.parent)
  merge_kwargs?(ancestor) do |merge_node, hash_node, other_hash_node|
    add_offense(merge_node) do |corrector|
      autocorrect(corrector, node, hash_node, other_hash_node)
    end
  end
end