MultilineData constructor
Renders structured key-value data in multi-line YAML format.
Use this when you have many data fields or nested structures that benefit from vertical layout. For compact single-line output, use InlineData instead.
Returns EmptySpan if data is null or empty.
Example output:
userId: abc123
action: login
metadata:
ip: 192.168.1.1
Implementation
MultilineData(this.data);