code: def get_block(self, block_id):
      return self._block_manager.blocks[block_id]
  
imports: import numpy
  from .schema_manager import SchemaManager
  from .block_manager import BlockManager
  from .block_manager import BlockType
  import pandas
  from ..entity import types
  from typing import Union, List, Tuple
  from ..conf.default_config import DATAFRAME_BLOCK_ROW_SIZE
label_desc: Use image node_id 22 for calling the DataManager obj's underlying member method code with example usage: obj.get_block(block_id) and returns: self