code: function Replacement(nodePath, nodes) {
    this.queue = [];
    if (nodePath && nodes) {
      this.queue.push([nodePath, nodes]);
    }
  }
docs: Represents a replacement of a node path with zero or more nodes.
  
  @constructor
  @param {ast-types.NodePath} nodePath
  @param {Array.<ast-types.Node>} nodes