code: def read_block_data(self, block):
          
          self.seek(block.file_offset + block.ec_hdr.data_offset)
          buf = self._fhandle.read(block.size - block.ec_hdr.data_offset - block.vid_hdr.data_pad)
          return buf
docs: Read LEB data from file
          
          Argument:
          Obj:block -- Block data is desired for.