Fix docgen

There is a very strange bug: hsml.python for some reason is available only as python.hsml.python.

python/hsml/connection.py

@@ -16,8 +16,6 @@
 
 import os
 
-from hsml import client
-from hsml.core import model_api, model_registry_api, model_serving_api
 from hsml.decorators import connected, not_connected
 from requests.exceptions import ConnectionError
 
@@ -98,6 +96,7 @@ def __init__(
         api_key_file: str = None,
         api_key_value: str = None,
     ):
+        from hsml.core import model_api, model_registry_api, model_serving_api
         self._host = host
         self._port = port
         self._project = project
@@ -162,6 +161,8 @@ def connect(self):
             conn.connect()
             ```
         """
+        from hsml import client
+        from hsml.core import model_api
         self._connected = True
         try:
             # init client
@@ -194,6 +195,7 @@ def close(self):
 
         Usage is recommended but optional.
         """
+        from hsml import client
         client.stop()
         self._model_api = None
         self._connected = False

python/hsml/model_registry.py

@@ -19,10 +19,10 @@
 import humps
 from hsml import util
 from hsml.core import model_api
-from hsml.python import signature as python_signature  # noqa: F401
 from hsml.sklearn import signature as sklearn_signature  # noqa: F401
 from hsml.tensorflow import signature as tensorflow_signature  # noqa: F401
 from hsml.torch import signature as torch_signature  # noqa: F401
+from python.hsml.python import signature as python_signature  # noqa: F401
 
 
 class ModelRegistry:

python/hsml/python/signature.py

@@ -19,7 +19,7 @@
 import numpy
 import pandas
 from hsml.model_schema import ModelSchema
-from hsml.python.model import Model
+from python.hsml.python.model import Model
 
 
 _mr = None