amount: The new limit amount. If time-based, this amount is in Redshift Processing Units (RPU) consumed per hour. If data-based, this amount is in terabytes (TB) of data transferred between Regions in cross-account sharing. The value must be a positive number.
breachAction: The new action that Amazon Redshift Serverless takes when the limit is reached.
usageLimitId: [required] The identifier of the usage limit to update.