修改为东南天坐标系

backend_service/venv/lib/python3.13/site-packages/chromadb/api/functions.py

@@ -0,0 +1,33 @@
+"""Attachable function definitions for ChromaDB collections.
+
+This module provides function constants that can be attached to collections
+to perform automatic computations on collection data.
+
+Example:
+    >>> from chromadb.api.functions import STATISTICS_FUNCTION
+    >>> attached_fn = collection.attach_function(
+    ...     function=STATISTICS_FUNCTION,
+    ...     name="my_stats",
+    ...     output_collection="my_stats_output"
+    ... )
+"""
+
+from enum import Enum
+
+
+class Function(str, Enum):
+    """Available functions that can be attached to collections."""
+
+    STATISTICS = "statistics"
+    """Computes metadata value frequencies for a collection."""
+
+    RECORD_COUNTER = "record_counter"
+    """Counts records in a collection."""
+
+    # Used only for failure testing - not a real function
+    _NONEXISTENT_TEST_ONLY = "nonexistent_function"
+
+
+# Convenience aliases for cleaner imports
+STATISTICS_FUNCTION = Function.STATISTICS
+RECORD_COUNTER_FUNCTION = Function.RECORD_COUNTER