class_docstr: Backend storage for our "array of bits" using an mmap'd file.
  Please note that this has only been tested on Linux so far.
class_docstr_tok: ["Backend","storage","for","our","``","array","of","bits","''","using","an","mmap","'d","file",".","Please","note","that","this","has","only","been","tested","on","Linux","so","far","."]
docstr: Close the file
code: def close(self):
      """Close the file"""
      os.close(self.file_)
  
imports: import array
  import math
  import os
  import random
label_desc: Use image node_id 7 for calling the Mmap_backend obj's underlying member method code with example usage: obj.close() without return types