old_contents: "use strict";
  
  module.exports = function(graph) {
    return {
      V: createVertexStream
    };
  }
  
  function createVertexStream(startFrom) {
    var VertexStream = require('./lib/vertexStream');
    return new VertexStream(graph, startFrom);
  }
  
new_contents: "use strict";
  
  module.exports = function(graph) {
    return {
      V: function createVertexStream(startFrom) {
        var VertexStream = require('./lib/vertexStream');
        return new VertexStream(graph, startFrom);
      }
    };
  };
  
subject: Put vertext stream back where it was