import matplotlib.pyplot as plt

plt.style.use('ah')

def hmeasure(x1, x2, y, **kwargs):
    pass

def vmeasure(x, y1, y2, **kwargs):
    pass

def datapointer(x, y, xtext=None, ytext=None, **kwargs):
    pass

plt.hmeasure = hmeasure
plt.vmeasure = vmeasure
plt.datapointer = datapointer

