@sampled decorator - deprecated?

I have been using this deocrator intesively to run the same generative model on datasets of different size but now it suddenly throws the error :

AttributeError: module ‘sampled.sampled’ has no attribute ‘Model’

Can reproduce it with the example in the docs:

import numpy as np 
import pymc3 as pm
from sampled import sampled
import theano.tensor as tt
def linear_model(X, y):
    shape = X.shape
    X = pm.Normal('X', mu=tt.mean(X, axis=0), sd=np.std(X, axis=0), shape=shape)
    coefs = pm.Normal('coefs', mu=tt.zeros(shape[1]), sd=tt.ones(shape[1]), shape=shape[1])
    pm.Normal('y', mu=tt.dot(X, coefs), sd=tt.ones(shape[0]), shape=shape[0])`
X = np.random.normal(size=(1000, 10))
w = np.random.normal(size=10)
y = X.dot(w) + np.random.normal(scale=0.1, size=1000)

with linear_model(X=X, y=y):
    sampled_coefs = pm.sample(draws=1000, tune=500)
Traceback (most recent call last):

  File "<ipython-input-9-2012d7efa2d1>", line 5, in <module>
    with linear_model(X=X, y=y):

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/sampled/sampled.py", line 20, in wrapped_f
    with ObserverModel(observed) as model:

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 274, in __call__
    instance = cls.__new__(cls, *args, **kwargs)

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 739, in __new__
    instance._parent = cls.get_context(error_if_none=False)

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 213, in get_context
    candidate = cls.get_contexts()[idx] # type: Optional[T]

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 234, in get_contexts
    context_class = cls.context_class

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 260, in context_class
    cls._context_class = resolve_type(cls._context_class)

  File "/home/vr308/anaconda3/lib/python3.6/site-packages/pymc3/model.py", line 254, in resolve_type
    c = getattr(modules[cls.__module__], c)

AttributeError: module 'sampled.sampled' has no attribute 'Model'

pymc3 version is 3.8

Not sure if @colcarroll is still maintaining it.