proc boolArg(conf: ConfigRef; n: PNode; name: string; pos: int; default: bool): bool {....raises: [
    Exception, ValueError, KeyError, OSError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc charArg(conf: ConfigRef; n: PNode; name: string; pos: int; default: char): char {....raises: [
    Exception, ValueError, KeyError, OSError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc filterReplace(conf: ConfigRef; stdin: PLLStream; filename: AbsoluteFile;
                   call: PNode): PLLStream {....raises: [Exception, ValueError,
    KeyError, OSError, IOError, ERecoverableError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc filterStrip(conf: ConfigRef; stdin: PLLStream; filename: AbsoluteFile;
                 call: PNode): PLLStream {....raises: [Exception, ValueError,
    KeyError, OSError, IOError, ERecoverableError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc strArg(conf: ConfigRef; n: PNode; name: string; pos: int; default: string): string {....raises: [
    Exception, ValueError, KeyError, OSError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}