_uuid_v7_ms() — langchain Function Reference

Architecture documentation for the _uuid_v7_ms() function in test_uuid_utils.py from the langchain codebase.

Function python LangChainCore ApiManagement called by 1

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LangChainCore→ ApiManagement→ _uuid_v7_ms() — langchain Function Reference

Dependency Diagram

graph TD
  3fa9cc88_3d6d_e6f3_b5ba_574b7aedbf35["_uuid_v7_ms()"]
  0b13f3c1_fce7_e4a0_f47d_296df8868d43["test_uuid_utils.py"]
  3fa9cc88_3d6d_e6f3_b5ba_574b7aedbf35 -->|defined in| 0b13f3c1_fce7_e4a0_f47d_296df8868d43
  3435e881_0a77_7d57_ebbe_ecbf2ad03254["test_uuid7()"]
  3435e881_0a77_7d57_ebbe_ecbf2ad03254 -->|calls| 3fa9cc88_3d6d_e6f3_b5ba_574b7aedbf35
  style 3fa9cc88_3d6d_e6f3_b5ba_574b7aedbf35 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/utils/test_uuid_utils.py lines 7–14

def _uuid_v7_ms(uuid_obj: UUID | str) -> int:
    """Extract milliseconds since epoch from a UUIDv7 using string layout.

    UUIDv7 stores Unix time in ms in the first 12 hex chars of the canonical
    string representation (48 msb bits).
    """
    s = str(uuid_obj).replace("-", "")
    return int(s[:12], 16)