code: def xlabel(label=None, mark=None, **kwargs):
      """Sets the value of label for an axis whose associated scale has the
      dimension `x`.
  
      Parameters
      ----------
      label: Unicode or None (default: None)
          The label for x axis
      """
      _set_label(label, mark, "x", **kwargs)
  
imports: import sys
  from collections import OrderedDict
  from IPython.display import display
  from ipywidgets import Image
  from numpy import arange, issubdtype, array, column_stack, shape
  from .figure import Figure
  from bqscales import Scale, LinearScale, Mercator
  from .axes import Axis
  from .marks import Lines, Scatter, Hist, Bars, OHLC, Pie, Map, Image, Label, HeatMap, GridHeatMap, topo_load, Boxplot, Bins
  from .interacts import BrushIntervalSelector, FastIntervalSelector, BrushSelector, IndexSelector, MultiSelector, LassoSelector
  from traitlets.utils.sentinel import Sentinel
  import functools
label_desc: Use image node_id 12 for calling a global function with example usage: xlabel(label, mark) without return types