code: function runSync(node, file) {
      var complete = false
      var result
  
      run(node, file, done)
  
      assertDone('runSync', 'run', complete)
  
      return result
  
      function done(err, tree) {
        complete = true
        bail(err)
        result = tree
      }
    }
docs: Run transforms on a unist node representation of a file (in string or vfile representation), sync.