class Sorbet::Private::Serialize

def to_sig(kind, name)
  case kind
  when :req
    name.to_s
  when :opt
    "#{name}=T.unsafe(nil)"
  when :rest
    "*#{name}"
  when :keyreq
    "#{name}:"
  when :key
    "#{name}: T.unsafe(nil)"
  when :keyrest
    "**#{name}"
  when :block
    "&#{name}"
  end
end