class_docstr: Writes diagnostic information about the assembler.
class_docstr_tok: ["Writes","diagnostic","information","about","the","assembler","."]
docstr: Returns the path to a file in a region-specific subdirectory.
docstr_tok: ["Returns","the","path","to","a","file","in","a","region-specific","subdirectory","."]
code: def _file_for_region(self, region, basename):
      """Returns the path to a file in a region-specific subdirectory."""
      assert self.enabled, "only callable when diagnostics are on"
      return self._root_join(
          os.path.join(ranges.to_literal(region), basename)
      )
  
imports: import csv
  import os
  import os.path
  from absl import flags
  from etils import epath
  from deepvariant.protos import realigner_pb2
  from deepvariant.realigner import window_selector
  from deepvariant.realigner.python import debruijn_graph
  from deepvariant.realigner.python import fast_pass_aligner
  from deepvariant.vendor import timer
  from google.protobuf import text_format
  from third_party.nucleus.io import sam
  from third_party.nucleus.protos import cigar_pb2
  from third_party.nucleus.protos import reads_pb2
  from third_party.nucleus.util import cigar
  from third_party.nucleus.util import ranges
  from third_party.nucleus.util import utils
  from third_party.nucleus.util.cigar import READ_ADVANCING_OPS
  from third_party.nucleus.util.cigar import REF_ADVANCING_OPS
label_desc: Use image node_id 6 for calling the DiagnosticLogger obj's underlying member method code with example usage: obj._file_for_region(region, basename) and returns: self