Span Event • Rust AI Agent SDK

SpanEvent: An event within a span.

SpanEvent

Defined in the trace module.

Rust AI Agent SDK

An event within a span.

Name	Type	Description
`name`	`String`	Event name
`timestamp`	`Duration`	Timestamp (as duration since trace start)
`attributes`	`HashMap<String`	Attributes
`serde_json`	`:Value>`	Attributes

rust

fn new(name: impl Into<String>, timestamp: Duration) -> Self

Create a new event.

Parameters:

Name	Type
`name`	`impl Into<String>`
`timestamp`	`Duration`

rust

fn with_attribute(mut self, key: impl Into<String>, value: impl Serialize) -> Self

Add an attribute.

Parameters:

Name	Type
`key`	`impl Into<String>`
`value`	`impl Serialize`

praisonai/src/trace/mod.rs at line 175