/* 0.26.0-alpha2 */
import type { BoxedSubstitution, PatternMatchOptions, BoxedExpression } from './public';
/**
 * The function attempts to match a subject expression to a
 * [pattern](/compute-engine/guides/patterns-and-rules/).
 *
 * If the match is successful, it returns a `Substitution` indicating how to
 * transform the pattern to become the subject.
 *
 * If the expression does not match the pattern, it returns `null`.
 *
 */
export declare function match(subject: BoxedExpression, pattern: BoxedExpression, options?: PatternMatchOptions): BoxedSubstitution | null;