code: def _make_options(x):
      """Standardize the options tuple format.
  
      The returned tuple should be in the format (('label', value), ('label', value), ...).
  
      The input can be
      * an iterable of (label, value) pairs
      * an iterable of values, and labels will be generated
      * a Mapping between labels and values
      """
      if isinstance(x, Mapping):
          x = x.items()
  
      # only iterate once through the options.
      xlist = tuple(x)
  
      # Check if x is an iterable of (label, value) pairs
      if all(
          (isinstance(i, (list, tuple)) and len(i) == 2) for i in xlist
      ):
          return tuple((str(k), v) for k, v in xlist)
  
      # Otherwise, assume x is an iterable of values
      return tuple((str(i), i) for i in xlist)
  
imports: from collections.abc import Iterable, Mapping
  from itertools import chain
  from .widget_description import DescriptionWidget, DescriptionStyle
  from .valuewidget import ValueWidget
  from .widget_core import CoreWidget
  from .widget_style import Style
  from .trait_types import InstanceDict, TypedTuple
  from .widget import register, widget_serialization
  from .widget_int import SliderStyle
  from .docutils import doc_subst
  from traitlets import Unicode, Bool, Int, Any, Dict, TraitError, CaselessStrEnum, Tuple, Union, observe, validate
label_desc: Use image node_id 2 for calling a global function with example usage: _make_options(x) and returns: tuple, tuple