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# Module composition

> Services supplied by the SDK or an embedding application. Component services supplied by plugin-host or an embedding application.

Generated from `cargo doc --no-deps -p nemo-relay-builtins -p nemo-relay-diagnostics -p nemo-relay-logging -p nemo-relay-plugin-host -p nemo-relay-codecs -p nemo-relay -p nemo-relay-runtime -p nemo-relay-model-pricing -p nemo-relay-resource-metrics -p nemo-relay-observability -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker`.

Services supplied by the SDK or an embedding application. Component services supplied by plugin-host or an embedding application.

## Structs

* [RuntimeServices](/reference/api/rust-library-reference/nemo-relay-runtime/composition/struct-runtimeservices): Composition callbacks owned by the embedding host, independent from the runtime engine.

## Functions

* [install_runtime_services](/reference/api/rust-library-reference/nemo-relay-runtime/composition/fn-install-runtime-services): Install composition once; subsequent initialization entry points preserve the chosen host.
* [services](/reference/api/rust-library-reference/nemo-relay-runtime/composition/fn-services): Return the host services, or an uncomposed engine with no built-in components.

## Type Aliases

* [SnapshotSink](/reference/api/rust-library-reference/nemo-relay-runtime/composition/type-snapshotsink): Callback receiving a resource snapshot without owning a collection implementation.

> Services supplied by the SDK or an embedding application. Component services supplied by plugin-host or an embedding application.

## Docs

- [Struct Runtime Services](https://docs.nvidia.com/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay-runtime/composition/struct-runtimeservices.md): Composition callbacks owned by the embedding host, independent from the runtime engine.
- [Function install_runtime_services](https://docs.nvidia.com/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay-runtime/composition/fn-install-runtime-services.md): Install composition once; subsequent initialization entry points preserve the chosen host.
- [Function services](https://docs.nvidia.com/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay-runtime/composition/fn-services.md): Return the host services, or an uncomposed engine with no built-in components.
- [Type Alias Snapshot Sink](https://docs.nvidia.com/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay-runtime/composition/type-snapshotsink.md): Callback receiving a resource snapshot without owning a collection implementation.