Method●Since v1.1

then

Attaches callbacks for the resolution and/or rejection of the Promise.

then<
  TResult1 = UsageMetadata | undefined,
  TResult2 = never
>(
  onfulfilled: (value: UsageMetadata | undefined) => TResult1 | PromiseLike<TResult1> | null, onrejected: (reason: unknown) => TResult2 | PromiseLike<TResult2> | null
): PromiseLike<TResult1 | TResult2>

Parameters

Name	Type	Description
`onfulfilled`	`(value: UsageMetadata \| undefined) => TResult1 \| PromiseLike<TResult1> \| null`	The callback to execute when the Promise is resolved.
`onrejected`	`(reason: unknown) => TResult2 \| PromiseLike<TResult2> \| null`	The callback to execute when the Promise is rejected.

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then

Parameters

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Parameters