class_docstr: State of the Hungarian algorithm.
  
  Parameters
  ----------
  cost_matrix : 2D matrix
      The cost matrix. Must have shape[1] >= shape[0].
class_docstr_tok: ["State","of","the","Hungarian","algorithm",".","Parameters","--","--","--","--","--","cost_matrix",":","2D","matrix","The","cost","matrix",".","Must","have","shape","[","1","]",">","=","shape","[","0","]","."]
docstr: Clear all covered matrix cells
docstr_tok: ["Clear","all","covered","matrix","cells"]
code: def _clear_covers(self):
      """Clear all covered matrix cells"""
      self.row_uncovered[:] = True
      self.col_uncovered[:] = True
  
file_path: catboost/contrib/python/scipy/py2/scipy/optimize/_hungarian.py
imports: import numpy
label_desc: Use image node_id 2 for calling the _Hungary obj's underlying member method code with example usage: obj._clear_covers() without return types