export declare class ParseError {
	stack: string[];
	msg: string;
	ref: ReferenceRange;
	constructor(msg: string, ref: ReferenceRange);
	add_stack(elm: string): void;
	hasStack(): boolean;
	toString(): string;
}
export declare class SyntaxNode {
	type: string;
	start: number;
	end: number;
	count: number;
	value: SyntaxNode[] | string;
	ref: ReferenceRange;
	constructor(type: string, start: number, end: number, count: number, ref: ReferenceRange);
}
export declare class Reference {
	line: number;
	col: number;
	index: number;
	constructor(line: number, col: number, index: number);
	advance(newline?: boolean): void;
	valueOf(): number;
	clone(): Reference;
	toString(): string;
	static blank(): Reference;
}
export declare class ReferenceRange {
	start: Reference;
	end: Reference;
	constructor(from: Reference, to: Reference);
	span(other: ReferenceRange): void;
	valueOf(): number;
	clone(): ReferenceRange;
	toString(): string;
	static union(a: ReferenceRange, b: ReferenceRange): ReferenceRange;
	static intersection(a: ReferenceRange, b: ReferenceRange): ReferenceRange;
	static blank(): ReferenceRange;
}
export declare function AssertUnreachable(x: never): never;
export declare function DecodeBase64(base64: string): Uint8Array;