code: def _buffer_list_equal(a, b):
      
      if len(a) != len(b):
          return False
      if a == b:
          return True
      for ia, ib in zip(a, b):
          # Check byte equality, since bytes are what is actually synced
          # NOTE: Simple ia != ib does not always work as intended, as
          # e.g. memoryview(np.frombuffer(ia, dtype='float32')) !=
          # memoryview(np.frombuffer(b)), since the format info differs.
          if PY3:
              # compare without copying
              if memoryview(ia).cast('B') != memoryview(ib).cast('B'):
                  return False
          else:
              # python 2 doesn't have memoryview.cast, so we may have to copy
              if isinstance(ia, memoryview) and ia.format != 'B':
                  ia = ia.tobytes()
              if isinstance(ib, memoryview) and ib.format != 'B':
                  ib = ib.tobytes()
              if ia != ib:
                  return False
      return True
docs: Compare two lists of buffers for equality.
  
      Used to decide whether two sequences of buffers (memoryviews,
      bytearrays, or python 3 bytes) differ, such that a sync is needed.
  
      Returns True if equal, False if unequal