# tracing_core::metadata - Rust
API documentation for the Rust `metadata` mod in crate `tracing_core`.
Keywords: rust, rustlang, rust-lang, metadata

# Module tracing_core::metadata [−] [src]

Metadata describing trace data.

## Structs

Kind | Indicates whether the callsite is a span or event.
Level | Describes the level of verbosity of a span or event.
LevelFilter | A filter comparable to a verbosity `Level`.
Metadata | Metadata describing a span or event.
ParseLevelError | Returned if parsing a `Level` fails.
ParseLevelFilterError | Indicates that a string could not be parsed to a valid level.