class_docstr: Basic tests for the wrapped DeBruijnGraph class.
code: def dbg_options(self):
      return realigner_pb2.DeBruijnGraphOptions(
          min_k=12,
          max_k=50,
          step_k=2,
          min_mapq=20,
          min_base_quality=20,
          min_edge_weight=2,
          max_num_paths=10,
      )
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from third_party.nucleus.io import fasta
  from third_party.nucleus.io import sam
  from third_party.nucleus.testing import test_utils
  from third_party.nucleus.util import ranges
  from deepvariant import testdata
  from deepvariant.protos import realigner_pb2
  from deepvariant.realigner.python import debruijn_graph
label_desc: Use image node_id 1 for calling the DeBruijnGraphWrapTest obj's underlying member method code with example usage: obj.dbg_options() and returns: realigner_pb2