code: function getPaths(db, originId, destinationId, callback) {
  
    // Get Graph
    buildGraph(db, function(err, graph) {
      if ( err ) {
        return callback(err);
      }
  
      // Paths to return
      let rtn = [];
  
      // Search the Graph
      for ( let it = graph.paths(originId, destinationId), kv; !(kv = it.next()).done;) {
        let path = [];
        for ( let i = 0; i < kv.value.length; i++ ) {
          let stop = graph.vertexValue(kv.value[i]);
          path.push({
            id: stop.id,
            weight: stop.transferWeight
          });
        }
        rtn.push(path);
      }
  
      // Return the paths
      return callback(null, rtn);
  
    });
  
  }
docs: Get all possible paths from the origin to the destination following the
  Agency Line Graph
  @param {RightTrackDB} db The Right Track DB to Query
  @param {String} originId Origin Stop ID
  @param {String} destinationId Destination Stop ID
  @param {function} callback Callback Function
  @param {Error} callback.err Database Query Error
  @param {Object[][]} [callback.paths] Route Paths
  @param {String} callback.paths[].id Stop ID
  @param {int} callback.paths[].weight Stop Transfer Weight