in <module> user['access_hash'] = int(row[2]) telethon code example

Example: telethon invite to group

# public chat
from telethon.tl.functions.channels import JoinChannelRequest
await client(JoinChannelRequest(channel))

# private chat
from telethon.tl.functions.messages import ImportChatInviteRequest
updates = await client(ImportChatInviteRequest('AAAAAEHbEkejzxUjAUCfYg'))