gplay build f.req for batchexecute app dl count

part.py

import urllib.parse
import json
package_name = "com.google.android.gms"
response_filter = [14] # 14 contains the download count data. we don't care about anything else so we're only filtering for that
dl_rpc_name = "Ws7gDc" # this is the specific RPC that contains the download count info
dl_rpc_body = [None, None, [response_filter], None, None, [[package_name, 7]]]
final_built_rpc = [[[dl_rpc_name, json.dumps(dl_rpc_body), None, '9']]]
built_rpc_text = urllib.parse.quote(json.dumps(final_built_rpc))
final_payload = f"f.req={built_rpc_text}"