code: def asset_path(path, format_kwargs={}, keep_slash=False):
      
      if format_kwargs:
          path = path.format_map(format_kwargs)
  
      has_slash = path.endswith(os.sep)
  
      if ':' in path:
          package_name, *rel_path = path.split(':', 1)
      else:
          package_name, rel_path = path, ()
  
      try:
          package = importlib.import_module(package_name)
      except ImportError:
          raise ValueError(
              'Could not get asset path for {path}; could not import package: {package_name}'
              .format_map(locals()))
  
      if not hasattr(package, '__file__'):
          raise ValueError("Can't compute path relative to namespace package")
  
      package_path = os.path.dirname(package.__file__)
      path = os.path.join(package_path, *rel_path)
      path = os.path.normpath(path)
  
      if has_slash and keep_slash:
          path = '{path}{slash}'.format(path=path, slash=os.sep)
  
      return path
docs: Get absolute path to asset in package.
  
      ``path`` can be just a package name like 'package' or it can be
      a package name and a relative file system path like 'package:util'.
  
      If ``path`` ends with a slash, it will be stripped unless
      ``keep_slash`` is set (for use with ``rsync``, for example).
  
      >>> file_path = os.path.normpath(__file__)
      >>> dir_name = os.path.dirname(file_path)
      >>> file_name = os.path.basename(file_path)
      >>> os.chdir(dir_name)
      >>>
      >>> asset_path('runcommands.util') == dir_name
      True
      >>> asset_path('runcommands.util:path.py') == file_path
      True
      >>> asset_path('runcommands.util:{name}.py', format_kwargs={'name': 'path'}) == file_path
      True
      >>> asset_path('runcommands.util:dir/') == (dir_name + '/dir')
      True
      >>> asset_path('runcommands.util:dir/', keep_slash=True) == (dir_name + '/dir/')
      True