proc hashNonProc(s: PSym): SigHash {....raises: [ValueError, IOError, KeyError,
    OSError, Exception], tags: [WriteIOEffect, ReadEnvEffect, ReadIOEffect,
                                RootEffect], forbids: [].}

proc hashOwner(s: PSym): SigHash {....raises: [ValueError, IOError, KeyError,
    OSError, Exception], tags: [WriteIOEffect, ReadEnvEffect, ReadIOEffect,
                                RootEffect], forbids: [].}

proc hashType(t: PType; conf: ConfigRef; flags: set[ConsiderFlag] = {CoType}): SigHash {.
    ...raises: [ValueError, IOError, KeyError, OSError, Exception],
    tags: [WriteIOEffect, ReadEnvEffect, ReadIOEffect, RootEffect], forbids: [].}

proc idOrSig(s: PSym; currentModule: string;
             sigCollisions: var CountTable[SigHash]; conf: ConfigRef): Rope {.
    ...raises: [ValueError, IOError, KeyError, OSError, Exception],
    tags: [WriteIOEffect, ReadEnvEffect, ReadIOEffect, RootEffect], forbids: [].}

proc sigHash(s: PSym; conf: ConfigRef): SigHash {.
    ...raises: [ValueError, IOError, KeyError, OSError, Exception],
    tags: [WriteIOEffect, ReadEnvEffect, ReadIOEffect, RootEffect], forbids: [].}

proc symBodyDigest(graph: ModuleGraph; sym: PSym): SigHash {.
    ...raises: [ValueError, IOError, KeyError, OSError, Exception], tags: [
    WriteIOEffect, ReadEnvEffect, ReadIOEffect, RootEffect, ReadDirEffect],
    forbids: [].}