//! Observability exporters for Everruns hosts.
//!
//! This module implements the neutral observability contracts from
//! `everruns-core` with Braintrust and OpenTelemetry backends.
//!
//! ```rust
//! use everruns_host::observability::CompositeEventListener;
//! let _type_name = std::any::type_name::<CompositeEventListener>();
//! ```
pub use ;
pub use CompositeEventListener;
pub use OtelEventListener;
pub use ;