/**
 * Resolvers locate plugin paths given a source string.
 */
export default interface Resolver {
    /**
     * Determines whether the source can be resolved by this resolver. This should
     * not necessarily determine whether the source actually does resolve to
     * anything, but rather whether it is of the right form to be resolved.
     *
     * For example, if a resolver were written to load a plugin from a `data:` URI
     * then this method might simply check that the URI is a valid `data:` URI
     * rather than actually decoding and handling the contents of said URI.
     */
    canResolve(source: string): Promise<boolean>;
    /**
     * Determines a file path that, when loaded as JavaScript, exports a babel
     * plugin suitable for use in the transform pipeline. If `source` does not
     * actually resolve to a file already on disk, consider writing the contents
     * to disk in a temporary location.
     */
    resolve(source: string): Promise<string>;
}