postcss-merge-longhand/types/lib/hasSubstitution.d.ts

Merge longhand properties into shorthand with PostCSS.

/**
 * A substitution function such as `var()` or `env()` may stand for any number
 * of tokens, so a value that holds one cannot be split or collapsed.
 *
 * @param {string} value
 * @return {boolean}
 */
export default function hasSubstitution(value: string): boolean;
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