/** * @import {Options, State} from 'mdast-util-to-markdown' */ /** * @param {State} state * @returns {Exclude} */ export function checkBullet(state) { const marker = state.options.bullet || '*' if (marker !== '*' && marker !== '+' && marker !== '-') { throw new Error( 'Cannot serialize items with `' + marker + '` for `options.bullet`, expected `*`, `+`, or `-`' ) } return marker }