class_docstr: Custom InputProcessor for query based ExampleGen driver.
class_docstr_tok: ["Custom","InputProcessor","for","query","based","ExampleGen","driver","."]
docstr: Returns the fingerprint for a certain Version of a certain Span.
docstr_tok: ["Returns","the","fingerprint","for","a","certain","Version","of","a","certain","Span","."]
code: def get_input_fingerprint(
      self, span: int, version: Optional[int]
  ) -> Optional[str]:
      """Returns the fingerprint for a certain Version of a certain Span."""
      # TODO(b/179853017): support fingerprint of table.
      return None
  
imports: import abc
  import copy
  from typing import Iterable, Optional, Tuple
  from tfx.components.example_gen import utils
  from tfx.proto import example_gen_pb2
  from tfx.proto import range_config_pb2
label_desc: Use image node_id 4 for calling the QueryBasedInputProcessor obj's underlying member method code with example usage: obj.get_input_fingerprint(span, version) and returns: None