python中dpi的替换

python3.7版本，tensorflow1.14版本，画图时设置dpi出错

from keras.utils.vis_utils import plot_model
help(plot_model)

输出结果：

Help on function plot_model in module keras.utils.vis_utils:

plot_model(model, to_file='model.png', show_shapes=False, show_layer_names=True, rankdir='TB', expand_nested=False, dpi=96)
    Converts a Keras model to dot format and save to a file.
    
    # Arguments
        model: A Keras model instance
        to_file: File name of the plot image.
        show_shapes: whether to display shape information.
        show_layer_names: whether to display layer names.
        rankdir: `rankdir` argument passed to PyDot,
            a string specifying the format of the plot:
            'TB' creates a vertical plot;
            'LR' creates a horizontal plot.
        expand_nested: whether to expand nested models into clusters.
        dpi: dot DPI.
    
    # Returns
        A Jupyter notebook Image object if Jupyter is installed.
        This enables in-line display of the model plots in notebooks.

你可以试一下你的输入上面这个代码，输出有没有这个dpi参数，感觉你的版本没有这个参数或者不支持修改，你试一下