class Dry::Types::Hash

def schema(type_map, klass = Schema)
  member_types = type_map.each_with_object({}) { |(name, type), result|
    result[name] =
      case type
      when String, Class then Types[type]
      else type
      end
  }
  klass.new(primitive, options.merge(member_types: member_types, meta: meta))
end