module GraphQL::Schema::Printer::TypeKindPrinters::DeprecatedPrinter

def print_deprecated(field_or_enum_value)
  return unless field_or_enum_value.deprecation_reason
  case field_or_enum_value.deprecation_reason
  when nil
    ''
  when '', GraphQL::Directive::DEFAULT_DEPRECATION_REASON
    ' @deprecated'
  else
    " @deprecated(reason: #{field_or_enum_value.deprecation_reason.to_s.inspect})"
  end
end