import type { ITokenStream } from '../streams/token-stream.js';
import type * as Ast from '../../node.js';
/**
 * ```abnf
 * Dest = IDENT / Expr
 * ```
*/
export declare function parseDest(s: ITokenStream): Ast.Expression;
/**
 * ```abnf
 * Params = "(" [Dest [":" Type] *(SEP Dest [":" Type])] ")"
 * ```
*/
export declare function parseParams(s: ITokenStream): Ast.Fn['params'];
/**
 * ```abnf
 * Block = "{" *Statement "}"
 * ```
*/
export declare function parseBlock(s: ITokenStream): (Ast.Statement | Ast.Expression)[];
/**
 * ```abnf
 * Label = "#" IDENT
 * ```
*/
export declare function parseLabel(s: ITokenStream): string;
/**
 * ```abnf
 * OptionalSeparator = [SEP]
 * ```
*/
export declare function parseOptionalSeparator(s: ITokenStream): boolean;
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