import { Pattern } from './pattern';
/**
 * A pattern in normal form. Normalised patterns use a subset of the full pattern DSL syntax [1]. Every pattern corresponds
 * to exactly one normal form that defines the same set of values. Two distinct patterns that define the same set of
 * values are guaranteed to have the same normal form.
 * [1] TODO: ...
 */
export declare type NormalisedPattern = Pattern & {
    __normalisedPatternBrand: any;
};
/** Asserts `source` is a valid pattern string and returns its normalised form. NB: may throw. */
export declare function NormalisedPattern(source: string): NormalisedPattern;