def GetPrintableStrs(namespace, kinds):
  """Returns tuples describing affected kinds and namespace.

  Args:
    namespace: namespace being targeted.
    kinds: list of kinds being targeted.

  Returns:
    (namespace_str, kind_str) tuple used for display to user.
  """
  namespace_str = namespace or ''
  if kinds:
    kind_str = 'all %s entities' % ', '.join(kinds)
  else:
    kind_str = ''
  return (namespace_str, kind_str)