import type { Eq } from "@principia/prelude/Eq";
export interface FiberId {
   readonly _tag: "FiberId";
   /** Start time in milliseconds */
   readonly startTime: number;
   readonly seqNumber: number;
}
export declare const FiberId: (startTime: number, seqNumber: number) => FiberId;
export declare const none: FiberId;
export declare const eqFiberId: Eq<FiberId>;
export declare const newFiberId: () => FiberId;
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