proc declarePureEnumField(c: PContext; s: PSym) {....raises: [KeyError, Exception],
    tags: [ReadDirEffect, RootEffect].}

proc evalFrom(c: PContext; n: PNode): PNode {.
    ...raises: [Exception, ERecoverableError, ValueError, OSError, KeyError],
    tags: [RootEffect, ReadEnvEffect, ReadIOEffect, ReadDirEffect].}

proc evalImport(c: PContext; n: PNode): PNode {.
    ...raises: [Exception, ERecoverableError, ValueError, OSError, KeyError],
    tags: [RootEffect, ReadEnvEffect, ReadIOEffect, ReadDirEffect].}

proc evalImportExcept(c: PContext; n: PNode): PNode {.
    ...raises: [Exception, ERecoverableError, ValueError, OSError, KeyError],
    tags: [RootEffect, ReadEnvEffect, ReadIOEffect, ReadDirEffect].}

proc importAllSymbols(c: PContext; fromMod: PSym) {.
    ...raises: [KeyError, Exception, ERecoverableError],
    tags: [ReadDirEffect, RootEffect].}