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refactor(otel): walk nested metadata iteratively instead of recursively

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Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
This commit is contained in:
yassin 2026-09-16 18:20:10 +00:00
parent 17059564a8
commit 8cab3a7846
1 changed files with 6 additions and 4 deletions
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10
litellm/integrations/otel/model/metadata.py
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@ -374,13 +374,15 @@ def metadata_from_request_data(data: object) -> Mapping[str, object] | None:
)
def flatten_metadata(raw: Mapping[str, object], prefix: str = "") -> Iterator[tuple[str, str]]:
def flatten_metadata(raw: Mapping[str, object]) -> Iterator[tuple[str, str]]:
"""Scalar leaves of a nested metadata mapping, keyed by their dotted path."""
for key, value in raw.items():
stack: Final = list(tuple(raw.items())[::-1]) # mutable-ok: iterative worklist keeps the walk off the call stack
while stack:
key, value = stack.pop()
if (nested := _as_str_mapping(value)) is not None:
yield from flatten_metadata(nested, f"{prefix}{key}.")
stack.extend(tuple((f"{key}.{sub_key}", sub_value) for sub_key, sub_value in nested.items())[::-1])
elif isinstance(value, (str, bool, int, float)):
yield f"{prefix}{key}", str(value)
yield key, str(value)
def resolve_provider_model(payload: StandardLoggingPayload) -> str | None: