proc dump(conf: ConfigRef; pd: ProfileData): string {.
    ...raises: [Exception, KeyError, OSError], tags: [RootEffect, ReadDirEffect].}

proc enter(prof: var Profiler; c: PCtx; tos: PStackFrame) {.inline, ...raises: [],
    tags: [TimeEffect].}

proc leave(prof: var Profiler; c: PCtx) {.inline, ...raises: [KeyError],
    tags: [TimeEffect].}