import { type Schema } from './ir';
export declare type OptimizeFn = (schema: Schema) => Schema;
export declare function foldIntersection(schema: Schema, optimize: OptimizeFn): Schema;
export declare function simplifyUnion(schema: Schema, optimize: OptimizeFn): Schema;
export declare function filterUndefinedUnion(schema: Schema): [boolean, Schema];
export declare function optimize(schema: Schema): Schema;
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