What does importing numpy from sampyl really do?

[Gabriel-p]

I've tried the following example importing numpy directly and from sampyl in Python 3.7, and they both seem to give the same results. What am I missing here?

import sampyl as smp
# from sampyl import np
import numpy as np
import seaborn
import matplotlib.pyplot as plt

icov = np.linalg.inv(np.array([[1., .8], [.8, 1.]]))
def logp(x, y):
    d = np.array([x, y])
    return -.5 * np.dot(np.dot(d, icov), d)

start = {'x': 1., 'y': 1.}
nuts = smp.NUTS(logp, start)
chain = nuts.sample(1000)

seaborn.jointplot(chain.x, chain.y, stat_func=None)
plt.show()