class_docstr: Measurement of work before the global relabeling heuristic should be
  applied.
class_docstr_tok: ["Measurement","of","work","before","the","global","relabeling","heuristic","should","be","applied","."]
code: def clear_work(self):
      self._work = 0
  
file_path: networkx/networkx/algorithms/flow/utils.py
imports: from collections import deque
  import networkx
label_desc: Use image node_id 4 for calling the GlobalRelabelThreshold obj's underlying member method code with example usage: obj.clear_work() without return types