{
  "variants": {
    "age=0": {"model": "wheat_stage0"},
    "age=1": {"model": "wheat_stage1"},
    "age=2": {"model": "wheat_stage2"},
    "age=3": {"model": "wheat_stage3"},
    "age=4": {"model": "wheat_stage4"},
    "age=5": {"model": "wheat_stage5"},
    "age=6": {"model": "wheat_stage6"},
    "age=7": {"model": "wheat_stage7"}
  }
}