pub fn parse_sse_line(line: &str) -> Option<StreamEvent>Expand description
Parse a raw SSE line pair into a StreamEvent.
Anthropic’s SSE format uses event: <type> and data: <json> lines.
This function expects the JSON data: line content (after stripping
the data: prefix). The event: line is used by the HTTP client
to identify the event type, but the JSON payload itself is
self-describing via the "type" field.
Returns None for empty lines, comments, or unparseable data.