code: def read(self, path, size, offset, fh):
      logger.debug("read")
      logger.debug(path)
      logger.debug(size)
      logger.debug(offset)
      logger.debug(fh)
      return self.fhs[fh.fno][offset : offset + size]
  
imports: import errno
  import locale
  import logging
  import os
  import stat
  import sys
  import time
  from optparse import Option, OptionParser
  import nibabel
  import nibabel.dft
label_desc: Use image node_id 7 for calling the DICOMFS obj's underlying member method code with example usage: obj.read(path, size, offset, fh) and returns: self