(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/PFMERGE.ts

@@ -3,6 +3,14 @@ import { RedisArgument, SimpleStringReply, Command } from '../RESP/types';
 import { RedisVariadicArgument } from './generic-transformers';
 
 export default {
+  /**
+   * Constructs the PFMERGE command
+   * 
+   * @param parser - The command parser
+   * @param destination - The destination key to merge to
+   * @param sources - One or more source keys to merge from
+   * @see https://redis.io/commands/pfmerge/
+   */
   parseCommand(
     parser: CommandParser,
     destination: RedisArgument,