This updates an existing pricing plan.
See https://www.paws-r-sdk.com/docs/billingconductor_update_pricing_plan/ for full documentation.
billingconductor_update_pricing_plan(Arn, Name = NULL, Description = NULL)
[required] 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.