clear init to ensure loading of framework specific ops only (#48)

remove embedding ops from init to ensure loading of only available framework ops

Author: jperez999

merlin/loader/ops/embeddings/__init__.py

@@ -13,15 +13,3 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-
-# flake8: noqa
-from merlin.loader.ops.embeddings.tf_embedding_op import (
-    TF_MmapNumpyTorchEmbedding,
-    TF_NumpyEmbeddingOperator,
-    TFEmbeddingOperator,
-)
-from merlin.loader.ops.embeddings.torch_embedding_op import (
-    Torch_MmapNumpyTorchEmbedding,
-    Torch_NumpyEmbeddingOperator,
-    TorchEmbeddingOperator,
-)

tests/unit/loader/test_tf_embeddings.py

@@ -20,16 +20,16 @@
 
 from merlin.core.dispatch import HAS_GPU
 from merlin.io import Dataset
-from merlin.loader.tensorflow import Loader
 from merlin.schema import Tags
 
 tf = pytest.importorskip("tensorflow")
 
-from merlin.loader.ops.embeddings import (  # noqa
+from merlin.loader.ops.embeddings.tf_embedding_op import (  # noqa
     TF_MmapNumpyTorchEmbedding,
     TF_NumpyEmbeddingOperator,
     TFEmbeddingOperator,
 )
+from merlin.loader.tensorflow import Loader  # noqa
 
 
 @pytest.mark.parametrize("cpu", [None, "cpu"] if HAS_GPU else ["cpu"])

tests/unit/loader/test_torch_embeddings.py

@@ -20,16 +20,16 @@
 
 from merlin.core.dispatch import HAS_GPU
 from merlin.io import Dataset
-from merlin.loader.torch import Loader
 from merlin.schema import Tags
 
 torch = pytest.importorskip("torch")
 
-from merlin.loader.ops.embeddings import (  # noqa
+from merlin.loader.ops.embeddings.torch_embedding_op import (  # noqa
     Torch_MmapNumpyTorchEmbedding,
     Torch_NumpyEmbeddingOperator,
     TorchEmbeddingOperator,
 )
+from merlin.loader.torch import Loader  # noqa
 
 
 @pytest.mark.parametrize("cpu", [None, "cpu"] if HAS_GPU else ["cpu"])