old_contents: import Client from './client'
  import PullRequests from './pulls'
  import Repositories from './repos'
  import PageLinks from './paging'
  
  export default function (config) {
    return new Client(config, {
      PullRequests,
      Repositories,
      PageLinks
    })
  }
  
new_contents: import Client from './client'
  import Branches from './branches'
  import Issues from './issues'
  import PullRequests from './pulls'
  import Repositories from './repos'
  import PageLinks from './paging'
  
  export default function (config) {
    return new Client(config, {
      Branches,
      Issues,
      PullRequests,
      Repositories,
      PageLinks
    })
  }
  
subject: Add branches and issues to the api