/**
 * Which projects a session's teams work on, read synchronously from the
 * teams directory (the trace context decides on the delivery path, which is
 * not async). Cached for a short time; any read problem means "unknown",
 * and unknown never drops a trace link.
 *
 * @module services/trace/session-projects
 */
/**
 * Build a resolver of session → project ids.
 *
 * @param teamsDir - Teams directory (default `<crewly home>/teams`)
 * @param now - Clock (ms)
 * @returns Resolver: the project ids of every team the session is a member of; null when the session is in no team or the teams cannot be read
 */
export declare function createSessionProjectResolver(teamsDir?: string, now?: () => number): (session: string) => string[] | null;
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