code: def make_plot(x, y):
      p = figure(
          title="Iris Morphology",
          sizing_mode="fixed",
          width=400,
          height=400,
      )
      p.xaxis.axis_label = x
      p.yaxis.axis_label = y
      p.scatter(
          flowers[x], flowers[y], color=colors, fill_alpha=0.2, size=10
      )
      return p
  
file_path: bokeh/examples/output/apis/json_item_themed.py
imports: import json
  from flask import Flask
  from jinja2 import Template
  from bokeh.embed import json_item
  from bokeh.plotting import figure
  from bokeh.resources import CDN
  from bokeh.sampledata.iris import flowers
  from bokeh.themes import Theme
label_desc: Use image node_id 1 for calling a global function with example usage: make_plot(x, y) and returns: p