export declare function assertNever(never: never, msg?: string): never;
export declare function assertNonNull<T>(value?: T, msg?: string): NonNullable<T>;
export declare function or<F extends ((a: any) => a is any)[]>(...conditions: F): (a: any) => a is F[number] extends (a: any) => a is infer T ? T : never;
export declare function encodeExecutionId(executionId: string): string;
export declare function parseArgs<Args extends Record<string, any | undefined>>(args: any[], predicates: Predicates<Args>): Args;
export type Predicates<Args extends Record<string, any | undefined>> = {
    [arg in keyof Args]: (value: any) => value is Args[arg];
};
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