from bokeh.plotting import figure, output_file, show
from bokeh.io import output_notebook
from bokeh.models import ColumnDataSource

import pandas as pd

# Set Bokeh output to notebook
output_notebook()

heatmap_data = pd.DataFrame({'x': [1, 1, 2, 2, 3, 3],
                             'y': [1, 2, 1, 2, 1, 2],
                             'value': [10, 20, 30, 40, 50, 60]})
heatmap_plot = figure(title="Sample Heatmap", x_axis_label='X-Axis', y_axis_label='Y-Axis')
heatmap_plot.rect(x='x', y='y', width=1, height=1, source=heatmap_data,
                  fill_color='blue', fill_alpha=0.4, legend_label="Heatmap")

show(heatmap_plot)