class_docstr: Custom InputProcessor for file based ExampleGen driver.
class_docstr_tok: ["Custom","InputProcessor","for","file","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."""
      assert self._fingerprint, "Call resolve_span_and_version first."
      return self._fingerprint
  
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 6 for calling the FileBasedInputProcessor obj's underlying member method code with example usage: obj.get_input_fingerprint(span, version) and returns: self