有没有一种方法可以可视化一组python函数中的调用关系？

import inspect
from graphviz import Digraph

def func_a():
    pass

def func_b():
    func_a()

def func_c():
    func_b()
    func_a()

def visualize_call_graph():
    dot = Digraph(comment='Function Call Graph')
    
    # 获取所有函数对象
    functions = [func_a, func_b, func_c]
    
    # 添加节点
    for func in functions:
        dot.node(func.__name__, func.__name__)
    
    # 添加边
    for func in functions:
        source = func.__name__
        for caller in inspect.stack():
            if caller.function == func.__name__:
                continue
            if caller.function in [f.__name__ for f in functions]:
                dot.edge(caller.function, source)
    
    dot.render('call_graph.gv', view=True)

if __name__ == "__main__":
    visualize_call_graph()