code: def __init__(self, path, shape, block_size):
      self.path = path
      self.shape = shape
      self.block_size = block_size
  
imports: import abc
  import json
  from ..typecheck import typecheck_method, sequenceof
  from ..utils.misc import escape_str
label_desc: Use image node_id 1 to create a new BlockMatrixBinaryReader object from inherited base classes: BlockMatrixReader with example: obj = BlockMatrixBinaryReader(path, shape, block_size)