proc storeAny(s: var string; t: PType; a: PNode; conf: ConfigRef) {...}{.
    raises: [Exception, ValueError, IOError, ERecoverableError],
    tags: [RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc loadAny(s: string; t: PType; cache: IdentCache; conf: ConfigRef): PNode {...}{.raises: [
    IOError, OSError, JsonParsingError, ValueError, Exception, ERecoverableError],
    tags: [ReadIOEffect, RootEffect, WriteIOEffect, ReadEnvEffect].}