export declare const DOI_REGEX: RegExp;
/**
 * Checks for a Synapse ID, with or without a version number.
 * Captures the synId and version number into capture groups.
 *
 * Usage examples:
 * > const result = 'syn123.9'.match(SYNAPSE_ENTITY_ID_REGEX)
 * > result[0]
 * 'syn123.9'
 * > result[1]
 * 'syn123'
 * > result[2]
 * '9'
 */
export declare const SYNAPSE_ENTITY_ID_REGEX: RegExp;