code: public void setVirtualRouters(java.util.Collection<VirtualRouterRef> virtualRouters) {
          if (virtualRouters == null) {
              this.virtualRouters = null;
              return;
          }
  
          this.virtualRouters = new java.util.ArrayList<VirtualRouterRef>(virtualRouters);
      }
docs: <p>
  The list of existing virtual routers for the specified service mesh.
  </p>
  
  @param virtualRouters
  The list of existing virtual routers for the specified service mesh.