%YAML 1.2
---
version: 1.1

condition: no  # a conditional variable

variable1:
  description: a first variable
  disabled:
    jinja: |-
      {{ _.condition == "yes" }}
    return_type: boolean
    description: if condition is egal to "yes"

variable2:
  description: a seconde variable
  disabled:
    jinja: |-
      {{ _.condition != "yes" }}
    return_type: boolean
    description: if condition is not egal to "yes"
...