/** Indicates the severity of a log message. * * Log Levels are ordered in increasing severity. So `Debug` is more severe than `Trace`, etc. */exportdeclareenumLogLevel{/** Log level for very low severity diagnostic messages. */Trace=0,/** Log level for low severity diagnostic messages. */Debug=1,/** Log level for informational diagnostic messages. */Information=2,/** Log level for diagnostic messages that indicate a non-fatal problem. */Warning=3,/** Log level for diagnostic messages that indicate a failure in the current operation. */Error=4,/** Log level for diagnostic messages that indicate a failure that will terminate the entire application. */Critical=5,/** The highest possible log level. Used when configuring logging to indicate that no log messages should be emitted. */None=6}/** An abstraction that provides a sink for diagnostic messages. */exportinterfaceILogger{/** Called by the framework to emit a diagnostic message. * * @param {LogLevel} logLevel The severity level of the message. * @param {string} message The message. */log(logLevel:LogLevel,message:string):void;}