whole_func_string: function(path) {
              var node = this.$getNode(path, false);
              if (node !== null){
                  return _.keys(node.nodes);
              } else {
                  return null;
              }
          }
func_code_string: function(path) {
              var node = this.$getNode(path, false);
              if (node !== null){
                  return _.keys(node.nodes);
              } else {
                  return null;
              }
          }
func_documentation_string: Returns all the paths that exist under the given path