fix linting

Author: jsakv

causalpy/__init__.py

@@ -1,9 +1,6 @@
 import arviz as az
 
-from causalpy import pymc_experiments
-from causalpy import pymc_models
-from causalpy import skl_experiments
-from causalpy import skl_models
+from causalpy import pymc_experiments, pymc_models, skl_experiments, skl_models
 from causalpy.version import __version__
 
 from .data import load_data