Starting 'n' copies of a daemon with systemd

I would like to have systemd start up a number of processing servers for a RabbitMQ RPC queue. I tried to follow the example in [Have SystemD spawn N processes?](https://unix.stackexchange.com/questions/288236/have-systemd-spawn-n-processes) to have a single systemctl command to start/stop the servers. Here are my unit file and template file. ansiblepbserver@.service:

[Unit]
Description=RabbitMQ rpc queue server instance %i for ansiblePB_rpc_queue
Requires=rabbitmq-server.servic
After=multi-user.target rabbitmq-server.service
StopWhenUnneeded=yes

[Service]
PermissionsStartOnly=true
Type=idle
User=secretuser
ExecStart=/usr/bin/python /app/bin/ansibleplaybookserver.py
Restart=always
RestartSec=10

[Install]
WantedBy=ansiblePB.servers.service

ansiblePB.servers.service:

[Unit]
Description=Controlling service for the multiple ansiblePB servers

[Install]
WantedBy=multi-user.target

Workflow: 1. Enable servers: sudo systemctl enable ansibleserver@{1..2}.service 2. Start everything for the first time sudo systemctl start ansiblePB.servers.service It fails with:

Failed to start ansiblePB.servers.service: Unit is not loaded properly: Invalid argument.
See system logs and 'systemctl status ansiblePB.servers.service' for details.

Status gives me:

ansiblePB.servers.service lacks both ExecStart= and ExecStop= setting. Refusing.

The docs say have to have at least ExecStart or ExecStop, but the example in the weblink above does not include either and I don't know what I would set them to. Any ideas?