code: def to_seqfeature(feature):
      
      if isinstance(feature, six.string_types):
          feature = feature_from_line(feature)
  
      qualifiers = {
          'source': [feature.source],
          'score': [feature.score],
          'seqid': [feature.seqid],
          'frame': [feature.frame],
      }
      qualifiers.update(feature.attributes)
      return SeqFeature(
          # Convert from GFF 1-based to standard Python 0-based indexing used by
          # BioPython
          FeatureLocation(feature.start - 1, feature.stop),
          id=feature.id,
          type=feature.featuretype,
          strand=_biopython_strand[feature.strand],
          qualifiers=qualifiers
      )
docs: Converts a gffutils.Feature object to a Bio.SeqFeature object.
  
      The GFF fields `source`, `score`, `seqid`, and `frame` are stored as
      qualifiers.  GFF `attributes` are also stored as qualifiers.
  
      Parameters
      ----------
      feature : Feature object, or string
          If string, assume it is a GFF or GTF-format line; otherwise just use
          the provided feature directly.