first commit for ml common integration

Signed-off-by: Dhrubo Saha <dhrubo@amazon.com>

opensearch_py_ml/ml_commons_integration/__init__.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """
+from ml_common_client import MLCommonClient
+
+__all__ = ["MLCommonClient"]

opensearch_py_ml/ml_commons_integration/load/__init__.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """

opensearch_py_ml/ml_commons_integration/ml_common_client.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """
+
+from opensearchpy import OpenSearch
+from upload.ml_common_upload_client import MLCommonUploadClient, DEFAULT_ML_COMMON_UPLOAD_CHUNK_SIZE
+
+
+class MLCommonClient:
+    """
+    A client that communicates to the ml-common plugin for OpenSearch. This client allows for uploading of trained
+    machine learning models to an OpenSearch index.
+    """
+
+    def __init__(self, os_client: OpenSearch):
+        self._client = os_client
+        self._upload_client = MLCommonUploadClient(os_client)
+
+    def put_model(self, model_path: str, chunk_size: int = DEFAULT_ML_COMMON_UPLOAD_CHUNK_SIZE):
+        self._upload_client.put_model(model_path, chunk_size)

opensearch_py_ml/ml_commons_integration/predict/__init__.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """

opensearch_py_ml/ml_commons_integration/upload/__init__.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """

opensearch_py_ml/ml_commons_integration/upload/ml_common_upload_client.py

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+"""
+Copyright OpenSearch Contributors
+SPDX-License-Identifier: Apache-2.0
+ """
+
+DEFAULT_ML_COMMON_UPLOAD_CHUNK_SIZE = 4 * 1024 * 1024
+
+from opensearchpy import OpenSearch
+
+class MLCommonUploadClient:
+    """
+    Client for performing model upload tasks to ml-commons plugin for OpenSearch.
+    """
+    def __init__(self, os_client: OpenSearch):
+        self._client = os_client
+
+    def put_model(self, model_path: str, chunk_size: int = DEFAULT_ML_COMMON_UPLOAD_CHUNK_SIZE):
+        pass