Show all details of a single plan.
# /open_api/v1/plans/9
{
"id": 9,
"name": "One year - corporations",
"slug": "one-month-corporations",
"amount": 36000
"interval": year,
"interval_count": 1,
"group_id": 3
"disabled": null,
"ui_weight": 9,
"monthly_payment": true,
"updated_at": "2020-12-14 14:10:11.056241000 Z",
"created_at": "2020-12-14 14:10:11.056241000 Z",
"training_credit_nb": 10,
"is_rolling": true,
"description": "10 trainings and 30 machine hours offered with your subscription to this plan",
"type": "Plan",
"plan_category_id": 2,
"file": "https://example.com/uploads/plan_file/25/Pricing_Grid_2020_2021_v2.png"
}