(docs) add jsdoc comments to command parsers (#2984)

* (docs) bloom: add jsdocs for all commands

* (docs) json: add jsdocs

* (docs) search: add jsdocs for all commands

* (docs) jsdocs for std commands

* (docs) jsdoc comments to time series commands

packages/client/lib/commands/ZUNION_WITHSCORES.ts

@@ -5,6 +5,10 @@ import ZUNION from './ZUNION';
 
 export default {
   IS_READ_ONLY: ZUNION.IS_READ_ONLY,
+  /**
+   * Returns the union of multiple sorted sets with their scores.
+   * @param args - Same parameters as the ZUNION command.
+   */
   parseCommand(...args: Parameters<typeof ZUNION.parseCommand>) {
     const parser = args[0];