code: public java.util.Map<java.lang.String, java.lang.Double> getAllocationsMap() {
      return internalGetAllocations().getMap();
    }
docs: <pre>
  Mapping from version IDs within the service to fractional
  (0.000, 1] allocations of traffic for that version. Each version can
  be specified only once, but some versions in the service may not
  have any traffic allocation. Services that have traffic allocated
  cannot be deleted until either the service is deleted or
  their traffic allocation is removed. Allocations must sum to 1.
  Up to two decimal place precision is supported for IP-based splits and
  up to three decimal places is supported for cookie-based splits.
  </pre>
  
  <code>map&lt;string, double&gt; allocations = 2;</code>