class Byebug::MethodSigCommand

def execute
  obj = debug_eval('method(:%s)' % @match[1])
  if obj.is_a?(Method)
    begin
      print "%s\n", obj.signature.to_s
    rescue
      errmsg("Can't get signature for '#{@match[1]}'\n")
    end
  else
    errmsg("Can't make method out of '#{@match[1]}'\n")
  end
end