/**
 * Parse a type alias declaration: type Name = TypeExpr
 * Or with type parameters: type Name<A, B> = TypeExpr
 *
 * Type declarations are type-only — they tell the typechecker about
 * named type aliases. They produce a null AST node at runtime (erased).
 *
 * Syntax:
 *   type Nullable = Number | Null
 *   type Pair = [Number, Number]
 *   type Result<T, E> = {tag: :ok, value: T} | {tag: :error, error: E}
 */
import type { AstNode } from '../types';
import type { ParserContext } from '../ParserContext';
export declare function parseTypeDeclaration(ctx: ParserContext): AstNode;