proc readExceptSet(c: PContext; n: PNode): IntSet {...}{.
    raises: [Exception, ValueError, IOError, ERecoverableError],
    tags: [RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

proc importPureEnumField(c: PContext; s: PSym) {...}{.raises: [], tags: [].}

proc importAllSymbols(c: PContext; fromMod: PSym) {...}{.
    raises: [Exception, ValueError, IOError, ERecoverableError],
    tags: [RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

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

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

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