class_docstr: Backend storage for our "array of bits" using a python array of integers
class_docstr_tok: ["Backend","storage","for","our","``","array","of","bits","''","using","a","python","array","of","integers"]
docstr: clear bit number bitno - set it to false
code: def clear(self, bitno):
      """clear bit number bitno - set it to false"""
      wordno, bit_within_wordno = divmod(bitno, 32)
      mask = Array_backend.effs - (1 << bit_within_wordno)
      self.array_[wordno] &= mask
  
imports: import array
  import math
  import os
  import random
label_desc: Use image node_id 4 for calling the Array_backend obj's underlying member method code with example usage: obj.clear(bitno) without return types