code: def main(args=None):
      """Show must go on"""
  
      parser = get_opt_parser()
      (opts, files) = parser.parse_args(args=args)
  
      nibabel.cmdline.utils.verbose_level = opts.verbose
  
      if nibabel.cmdline.utils.verbose_level < 3:
          # suppress nibabel format-compliance warnings
          nib.imageglobals.logger.level = 50
  
      rows = [proc_file(f, opts) for f in files]
  
      print(table2string(rows))
  
file_path: nibabel/nibabel/cmdline/ls.py
imports: import sys
  from optparse import Option, OptionParser
  import numpy
  import nibabel
  import nibabel.cmdline.utils
  from nibabel.cmdline.utils import _err, ap, safe_get, table2string, verbose
label_desc: Use image node_id 3 for calling a global function with example usage: main(args) without return types