export interface CSSValue {
    type: string;
    string: string;
    unit?: string;
    value?: number;
}
export interface CommaToken {
    type: 'comma';
    string: ',';
}
export interface IdentToken {
    type: 'ident';
    string: string;
}
export interface NumberToken {
    type: 'number';
    string: string;
    unit: string;
    value: number;
}
export interface StringToken {
    type: 'string';
    quote: '"' | "'";
    string: string;
    value: string;
}
export type Token = CommaToken | IdentToken | NumberToken | StringToken;
/**
 * Parse a string into an array of tokens.
 */
export declare function parse(str: string): Token[];