old_contents: from pysam.utils import PysamDispatcher
  
  # samtools command line options to export in python
  SAMTOOLS_DISPATCH = {
      # samtools 'documented' commands
      "view": ("view", None),
      "sort": ("sort", None),
      "mpileup": ("mpileup", None),
      "depth": ("depth", None),
      "faidx": ("faidx", None),
      "fqidx": ("fqidx", None),
      "tview": ("tview", None),
      "index": ("index", None),
      "idxstats": ("idxstats", None),
      "fixmate": ("fixmate", None),
      "flagstat": ("flagstat", None),
      "calmd": ("calmd", None),
      "merge": ("merge", None),
      "markdup": ("markdup", None),
      "rmdup": ("rmdup", None),
      "reheader": ("reheader", None),
      "cat": ("cat", None),
      "targetcut": ("targetcut", None),
      "phase": ("phase", None),
      "bam2fq": ("bam2fq", None),
      "dict": ("dict", None),
      "addreplacerg": ("addreplacerg", None),
      "pad2unpad": ("pad2unpad", None),
      "depad": ("pad2unpad", None),
      "bedcov": ("bedcov", None),
      "coverage": ("coverage", None),
      "bamshuf": ("bamshuf", None),
      "collate": ("collate", None),
      "stats": ("stats", None),
      "fasta": ("fasta", None),
      "fastq": ("fastq", None),
      "quickcheck": ("quickcheck", None),
      "split": ("split", None),
      "flags": ("flags", None),
      "ampliconclip": ("ampliconclip", None),
      "ampliconstats": ("ampliconstats", None),
  }
  
  # instantiate samtools commands as python functions
  for key, options in SAMTOOLS_DISPATCH.items():
      cmd, parser = options
      globals()[key] = PysamDispatcher("samtools", cmd, parser)
  
  __all__ = list(SAMTOOLS_DISPATCH)
  
new_contents: from pysam.utils import PysamDispatcher
  
  # samtools command line options to export in python
  SAMTOOLS_DISPATCH = {
      # samtools 'documented' commands
      "view": ("view", None),
      "sort": ("sort", None),
      "mpileup": ("mpileup", None),
      "depth": ("depth", None),
      "faidx": ("faidx", None),
      "fqidx": ("fqidx", None),
      "tview": ("tview", None),
      "index": ("index", None),
      "idxstats": ("idxstats", None),
      "fixmate": ("fixmate", None),
      "flagstat": ("flagstat", None),
      "calmd": ("calmd", None),
      "merge": ("merge", None),
      "markdup": ("markdup", None),
      "rmdup": ("rmdup", None),
      "reheader": ("reheader", None),
      "cat": ("cat", None),
      "targetcut": ("targetcut", None),
      "phase": ("phase", None),
      "bam2fq": ("bam2fq", None),
      "dict": ("dict", None),
      "addreplacerg": ("addreplacerg", None),
      "pad2unpad": ("pad2unpad", None),
      "depad": ("pad2unpad", None),
      "bedcov": ("bedcov", None),
      "coverage": ("coverage", None),
      "bamshuf": ("bamshuf", None),
      "collate": ("collate", None),
      "stats": ("stats", None),
      "fasta": ("fasta", None),
      "fastq": ("fastq", None),
      "quickcheck": ("quickcheck", None),
      "split": ("split", None),
      "flags": ("flags", None),
      "ampliconclip": ("ampliconclip", None),
      "ampliconstats": ("ampliconstats", None),
      "version": ("version", None),
  }
  
  # instantiate samtools commands as python functions
  for key, options in SAMTOOLS_DISPATCH.items():
      cmd, parser = options
      globals()[key] = PysamDispatcher("samtools", cmd, parser)
  
  __all__ = list(SAMTOOLS_DISPATCH)
  
subject: Add new version subcommand to pysam/samtools.py