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The meta library provides information about the running ruleset. The following functions are available:

• meta:rid() . meta:rid() returns - returns the ruleset ID of the current running ruleset.
• meta:version(). meta:version() -returns the version of the currently running ruleset.
• meta:callingRID(). meta:callingRID() returns - returns the RID of the calling ruleset if running in a module, or the current ruleset ID otherwise.
• meta:callingVersion(). meta:callingVersion() returns - returns the version of the calling ruleset if running in a module, or the current ruleset version otherwise.
• meta:moduleRID(). meta:moduleRID() returns - returns the RID of the module if running in a module, or the current ruleset ID otherwise.
• meta:moduleVersion(). meta:moduleVersion() returns - returns the version of the module if running in a module, or the current ruleset version otherwise.
• meta:inModule(). meta:inModule() returns - returns a Boolean value indicating whether the current code is running in a module.
• meta:hostname() - returns the hostname of the rules engine evaluating the ruleset.
• meta:rulesetName() - returns the name from the meta sections of the current ruleset
• meta:rulesetAuthor() - returns the author from the meta sections of the current ruleset
• meta:rulesetDescription() - returns the description  from the meta sections of the current ruleset