自定义解析路径能够自动化吗

` var userId: String?
var userName: String?

override func mapping(mapper: HelpingMapper) {
mapper <<<
userId <-- "user_id"
mapper <<<
userName <-- "user_name"
}`

遇到这种带下划线的风格，有没有办法自动转换成驼峰的风格

Start by reviewing the mapping(mapper: HelpingMapper) entry point shown in the issue and the library's existing mapping behavior. Define the intended snake_case-to-camelCase scope and a verifiable example; done should mean the automatic conversion behavior and compatibility expectations are specified.

Written by the indexing model from the issue text.