class_docstr: Mechanism for iterating over out-edges incident to a node in a circular
  manner. StopIteration exception is raised when wraparound occurs.
class_docstr_tok: ["Mechanism","for","iterating","over","out-edges","incident","to","a","node","in","a","circular","manner",".","StopIteration","exception","is","raised","when","wraparound","occurs","."]
code: def move_to_next(self):
      try:
          self._curr = next(self._it)
      except StopIteration:
          self._rewind()
          raise
  
file_path: networkx/networkx/algorithms/flow/utils.py
imports: from collections import deque
  import networkx
label_desc: Use image node_id 3 for calling the CurrentEdge obj's underlying member method code with example usage: obj.move_to_next() without return types