def _compute_metadata()

in common/skeleton.py [0:0]


    def _compute_metadata(self):
        self._has_children = np.zeros(len(self._parents)).astype(bool)
        for i, parent in enumerate(self._parents):
            if parent != -1:
                self._has_children[parent] = True

        self._children = []
        for i, parent in enumerate(self._parents):
            self._children.append([])
        for i, parent in enumerate(self._parents):
            if parent != -1:
                self._children[parent].append(i)