ChargeTier

name string required

quantity double required

Number of units consumed

starting_after double required

Starting point when this tier is applicable

price double required

Rate per unit

subtotal double required

Total cost for the tier

ChargeTier

{
  "name": "string",
  "quantity": 0,
  "starting_after": 0,
  "price": 0,
  "subtotal": 0
}