class_docstr: A builder class for blocks.
class_docstr_tok: ["A","builder","class","for","blocks","."]
docstr: Build the block.
docstr_tok: ["Build","the","block","."]
code: def build(self) -> Block:
      """Build the block."""
      raise NotImplementedError
  
file_path: ray/python/ray/data/_internal/block_builder.py
imports: from typing import Generic
  from ray.data.block import Block, BlockAccessor, T
label_desc: Use image node_id 5 for calling the BlockBuilder obj's underlying member method code with example usage: obj.build() without return types