<PackageReference Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="1.19.0" />

OpenTelemetry.OpenTelemetryBuilderConfigurationAccessor

Provides access to the host's IConfiguration instance for OTel extensions resolving it from DI.
namespace OpenTelemetry { internal sealed class OpenTelemetryBuilderConfigurationAccessor { public OpenTelemetryBuilderConfigurationAccessor(object configuration); } }