Data template for entity button (lovelace) empty (FIXED)

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1

I was trying to use four buttons in lovelace, each sending their own number to a mqtt topic. Instead of making four scripts I wanted to use the data template. (never used before). I dont get any errors but the data is empty.
entity button:

- type: entity-button
  name: Send number
  tap_action: call-service
  service: script.turn_on
  entity_id: script.send_number
  data_template:
     number: "1"
  entity: script.send_number

and my script:

send_number:
  alias: 'Send Number'
  sequence:
    - service: mqtt.publish
      data_template:
        topic: "homeassistant/pixelDisplay"
        payload: '{{number}}'
        qos: '0'
        retain: 'false'

Can anyone see what I am doing wrong

2

I finally found out what was wrong. For the others still searching for the answer, here is the code:

- type: entity-button
  entity: script.send_number
  name: Send number
  tap_action: call-service
  service: script.send_number
  service_data:
    number: '2'
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