chore: import upstream snapshot with attribution

packages/graphrag-input/graphrag_input/hashing.py

@@ -0,0 +1,27 @@
+# Copyright (c) 2024 Microsoft Corporation.
+# Licensed under the MIT License
+
+"""Hashing utilities."""
+
+from collections.abc import Iterable
+from hashlib import sha512
+from typing import Any
+
+
+def gen_sha512_hash(item: dict[str, Any], hashcode: Iterable[str]) -> str:
+    """Generate a SHA512 hash.
+
+    Parameters
+    ----------
+    item : dict[str, Any]
+        The dictionary containing values to hash.
+    hashcode : Iterable[str]
+        The keys to include in the hash.
+
+    Returns
+    -------
+    str
+        The SHA512 hash as a hexadecimal string.
+    """
+    hashed = "".join([str(item[column]) for column in hashcode])
+    return f"{sha512(hashed.encode('utf-8'), usedforsecurity=False).hexdigest()}"