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 add_work(self, work):
      self._work += work
  
file_path: networkx/networkx/algorithms/flow/utils.py
imports: from collections import deque
  import networkx
label_desc: Use image node_id 2 for calling the GlobalRelabelThreshold obj's underlying member method code with example usage: obj.add_work(work) without return types