Update graph_tool.py

graph_tool.py

@@ -4,7 +4,7 @@ import matplotlib.pyplot as plt
 import numpy as np
 import json
 
-def generate_plot_single_input(plot_config_json):
+def generate_plot(plot_config_json):
     """
     Generates a plot (bar, line, or pie) and returns it as an HTML-formatted Base64-encoded image string.