Capture a test-mode authorization.

Expire a test-mode Authorization.

Finalize the amount on an Authorization prior to capture, when the initial authorization was for an estimated amount.

Increment a test-mode Authorization.

Create a test-mode authorization.

Respond to a fraud challenge on a testmode Issuing authorization, simulating either a confirmation of fraud or a correction of legitimacy.

Reverse a test-mode Authorization.

Client is used to invoke /issuing/authorizations APIs.