class_docstr: Counter metric interface. Allows a count to be incremented/decremented
  during pipeline execution.
  
  .. versionadded:: 1.11.0
class_docstr_tok: ["Counter","metric","interface",".","Allows","a","count","to","be","incremented\/decremented","during","pipeline","execution",".","..","versionadded",":",":","1.11.0"]
docstr: Decrement the current count by 1.
  
  .. versionadded:: 1.11.0
docstr_tok: ["Decrement","the","current","count","by","1",".","..","versionadded",":",":","1.11.0"]
code: def dec(self, n: int = 1):
      """
      Decrement the current count by 1.
  
      .. versionadded:: 1.11.0
      """
      pass
  
imports: from abc import ABC, abstractmethod
  from typing import Callable
label_desc: Use image node_id 2 for calling the Counter obj's underlying member method code with example usage: obj.dec(n) without return types