Test, validate and match regular expressions
Matches log lines containing a structured metadata tag like [v="standard-<version>",g="<group>",p="<platform>"] followed by a URL path containing either 'returns' or 'mpt_statistics' segments with additional identifier parameters. It extracts seven capture groups: the version label, version word, group, platform, endpoint type, and two trailing identifiers. Useful for parsing trading system or application logs to extract performance metrics and statistics request details.