code: public ServiceFuture<AccessUriInner> grantAccessAsync(String resourceGroupName, String diskName, GrantAccessData grantAccessData, final ServiceCallback<AccessUriInner> serviceCallback) {
          return ServiceFuture.fromResponse(grantAccessWithServiceResponseAsync(resourceGroupName, diskName, grantAccessData), serviceCallback);
      }
docs: Grants access to a disk.
  
  @param resourceGroupName The name of the resource group.
  @param diskName The name of the managed disk that is being created. The name can't be changed after the disk is created. Supported characters for the name are a-z, A-Z, 0-9 and _. The maximum name length is 80 characters.
  @param grantAccessData Access data object supplied in the body of the get disk access operation.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object