code: def get_byte(self):
      if self._load_byte():
          byte_list = self.buffer[:8]
          self.buffer = self.buffer[8:]
  
          return "".join(byte_list)
      else:
          return -1
  
imports: from collections import defaultdict, deque
  import heapq
label_desc: Use image node_id 7 for calling the HuffmanReader obj's underlying member method code with example usage: obj.get_byte() and returns: str, unknown