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"]
code: def __init__(self, num_bits):
      self.num_bits = num_bits
      self.num_words = (self.num_bits + 31) // 32
      self.array_ = array.array("L", [0]) * self.num_words
  
imports: import array
  import math
  import os
  import random
label_desc: Use image node_id 1 to create a new Array_backend object from inherited base classes: object with example: obj = Array_backend(num_bits)