/** Compile an authored synchronous calculation inside an existing SET/CASE expression.
 * Arguments are developer-authored JavaScript source, never caller text or runtime values.
 * This advanced helper does not change Worker.calculate's path-only argument validation.
 */
export function compileExpression(fn: any, ...args: any[]): any;
export function Worker(spec: any): any;
export function Provider(spec: any): any;
export function Form(spec: any): any;
export function Performer(spec: any): any;
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