code: function find(obj, node, parent) {
    if (!obj) return;
    var result;
  
    var types = Object.keys(obj);
    for (var i = 0; i < types.length; i++) {
      var type = types[i];
  
      if (t.is(type, node)) {
        var fn = obj[type];
        result = fn(node, parent);
        if (result != null) break;
      }
    }
  
    return result;
  }
docs: Test if node matches a set of type-matcher pairs.
  @example
  find({
  VariableDeclaration(node, parent) {
  return true;
  }
  }, node, parent);