class Aws::ParamValidator

def list(ref, values, errors, context)
  # ensure the value is an array
  unless values.is_a?(Array)
    errors << expected_got(context, "an Array", values)
    return
  end
  # validate members
  member_ref = ref.shape.member
  values.each.with_index do |value, index|
    shape(member_ref, value, errors, context + "[#{index}]")
  end
end