Function merge

packages/core/src/plugin/models-dev.ts:58–63

(left: ModelV2Info["cost"][number], right: ModelV2Info["cost"][number])

  const [nextDefault, ...nextTiers] = next
  const tierKey = (item: ModelV2Info["cost"][number]) => `${item.tier?.type ?? "base"}:${item.tier?.size ?? 0}`
  const merge = (left: ModelV2Info["cost"][number], right: ModelV2Info["cost"][number]) => ({
    ...left,
    ...right,
    tier: right.tier ?? left.tier,
    cache: { ...left.cache, ...right.cache },
  })
  const tiers = new Map(baseTiers.map((item) => [tierKey(item), item]))
  for (const item of nextTiers) {
    const current = tiers.get(tierKey(item))