code: public java.lang.String getAllocatorType() {
      java.lang.Object ref = allocatorType_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        allocatorType_ = s;
        return s;
      }
    }
docs: <pre>
  The type of GPU allocation strategy to use.
  Allowed values:
  "": The empty string (default) uses a system-chosen default
  which may change over time.
  "BFC": A "Best-fit with coalescing" algorithm, simplified from a
  version of dlmalloc.
  </pre>
  
  <code>optional string allocator_type = 2;</code>