> This page is for NeMo Relay, version v0.8.4.
> For other versions, use one of these documentation indexes:
> - Latest (v0.10.0) (default): https://docs.nvidia.com/nemo/relay/latest/llms.txt
> - dev: https://docs.nvidia.com/nemo/relay/dev/llms.txt
> - v0.10.0: https://docs.nvidia.com/nemo/relay/v0.10.0/llms.txt
> - v0.9.4: https://docs.nvidia.com/nemo/relay/v0.9.4/llms.txt
> - v0.8.4: https://docs.nvidia.com/nemo/relay/v0.8.4/llms.txt
> - v0.7.3: https://docs.nvidia.com/nemo/relay/v0.7.3/llms.txt
> - v0.6.0: https://docs.nvidia.com/nemo/relay/v0.6.0/llms.txt
> - v0.5.0: https://docs.nvidia.com/nemo/relay/v0.5.0/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/relay/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server.

# Struct Open Telemetry Subscriber Options

> Options for constructing an OpenTelemetry subscriber from an existing tracer provider.

Generated from `cargo doc --no-deps -p nemo-relay -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`.

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Options for constructing an OpenTelemetry subscriber from an existing tracer provider.

## Fields

### `mark_projection: MarkProjection`

How mark events are projected into the trace.

### `mark_exclude_names: Vec<String>`

Mark names excluded from tool projection.

### `attribute_mappings: Vec<OtlpAttributeMapping>`

Typed OTLP attributes copied to alias keys.

### `promote_metadata_prefixes: Vec<String>`

Literal Event metadata prefixes copied to OTLP attributes.

### `completed_span_context_ttl: Duration`

How long completed scopes retain their trace context for late marks.

## Trait Implementations

### `impl Clone for OpenTelemetrySubscriberOptions`

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#### `clone`

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#### `clone_from`

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### `impl Debug for OpenTelemetrySubscriberOptions`

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#### `fmt`

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### `impl Default for OpenTelemetrySubscriberOptions`

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#### `default`

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