SpanExportFormat

The serialization format of the exported file.

• txtCopy: One rendered span line per record, carrying a fixed field set of start timestamp, service, span name, duration, kind, status code, trace ID and span ID. Ignores columnsCopy.
• ndjsonCopy: One OTLP JSON payload per line, each carrying a single span inside the same resourceSpansCopy envelope GetSpansCopy returns, so each line is independently parseable by any OTLP JSON consumer.
• yamlCopy: The same per-span OTLP payloads as ndjsonCopy, as a multi-document YAML stream with documents separated by ---Copy.
• csvCopy: A header row plus one row per span, flattened to the requested columnsCopy.