Ternary operator with heat and yaql

heat-ternary-yaql.yaml

heat_template_version: newton

parameters:

  one:
    type: string
    default: one
  two:
    type: string
    default: two
  version:
    type: string
    default: lbaasv2

resources:
  debug:
    type: OS::Heat::Value
    properties:
      value:
        yaql:
          expression:
            str_replace:
              template: '$.data[%version%]'
              params:
                '%version%':
                   get_param: version
          data:
            lbaasv1:
              get_param: one
            lbaasv2:
              get_param: two