export interface ChannelMeta {
    id: string;
    is_private?: boolean;
    is_im?: boolean;
    is_mpim?: boolean;
}
/**
 * Map a Slack channel into a hippo scope string.
 *
 * Default to private when privacy is undetermined. The cost of leaking a
 * public channel into private scope (recall returns nothing) is far smaller
 * than the cost of leaking a private channel into public scope (data exposed
 * to a tenant that should not see it).
 */
export declare function scopeFromChannel(ch: ChannelMeta): string;
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