--- /dev/null
+from typing import Any
+
+log: Any
+ROOT: str
+PARENT: str
+SAMPLE: str
+SELF: str
+HEADER_DELIMITER: str
+
+class TraceHeader:
+ def __init__(
+ self, root: str | None = ..., parent: str | None = ..., sampled: bool | None = ..., data: dict[str, Any] | None = ...
+ ) -> None: ...
+ @classmethod
+ def from_header_str(cls, header): ...
+ def to_header_str(self): ...
+ @property
+ def root(self): ...
+ @property
+ def parent(self): ...
+ @property
+ def sampled(self): ...
+ @property
+ def data(self): ...