Remove spines on a matplotlib figure.

despine.py

from matplotlib.axes import Axes

@classmethod
def despine(cls, ax: Axes) -> Axes:
    """
    Removes all spines and ticks on an Axes.
    """
    ax.set_yticks([])
    ax.set_yticks([])
    ax.set_xticklabels([])
    ax.set_yticklabels([])
    ax.spines['top'].set_visible(False)
    ax.spines['bottom'].set_visible(False)
    ax.spines['right'].set_visible(False)
    ax.spines['left'].set_visible(False)
    ax.get_xaxis().set_ticks([])
    ax.get_yaxis().set_ticks([])
    return ax