This updates an existing pricing plan.
The Amazon Resource Name (ARN) of the pricing plan that you're updating.
The name of the pricing plan. The name must be unique to each pricing plan.
The description of the pricing plan.
Success
The Amazon Resource Name (ARN) of the updated pricing plan.
The new description for the pricing rule.
The pricing rules count that's currently associated with this pricing plan list.
The most recent time when the pricing plan was modified.