class_docstr: Calculate the Munkres solution to the classical assignment problem.
  See the module documentation for usage.
docstr: Create a new instance
docstr_tok: ["Create","a","new","instance"]
code: def __init__(self):
      """Create a new instance"""
      self.C = None
      self.row_covered = []
      self.col_covered = []
      self.n = 0
      self.Z0_r = 0
      self.Z0_c = 0
      self.marked = None
      self.path = None
  
imports: import sys
label_desc: Use image node_id 1 to create a new Munkres object  with example: obj = Munkres()