ChargeTier

namestringrequired

quantitydoublerequired

Number of units consumed

starting_afterdoublerequired

Starting point when this tier is applicable

pricedoublerequired

Rate per unit

subtotaldoublerequired

Total cost for the tier

ChargeTier

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