/legacy/offsite-ads/budgets

Create one or more new budgets to enable spending with the given limitations.
All three types of budgets can be created this way.

The following constraints apply when creating a new budget.

� sellerId: the seller MUST be supplied

� campaignIds: a non-empty array of campaign ids MUST be supplied

� budgetType: a budget type MUST be supplied

� amount: an amount MAY be supplied only if the type is not Uncapped and if supplied it MUST be non-negative

� startDate: a future start date MUST be supplied

� endDate: an end date MAY be supplied and if supplied MUST be greater than the start date

Other attributes MUST NOT be supplied.