<PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />

OpenTelemetry.Trace.SpanAttributes

public class SpanAttributes
A class that represents the span attributes. Read more here https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/README.md#attribute.
namespace OpenTelemetry.Trace { public class SpanAttributes { public SpanAttributes(); public SpanAttributes(IEnumerable<KeyValuePair<string, object>> attributes); public void Add(string key, long value); public void Add(string key, string value); public void Add(string key, bool value); public void Add(string key, double value); public void Add(string key, long[] values); public void Add(string key, string[] values); public void Add(string key, bool[] values); public void Add(string key, double[] values); } }