code: public AccessUriInner beginGrantAccess(String resourceGroupName, String diskName, GrantAccessData grantAccessData) {
          return beginGrantAccessWithServiceResponseAsync(resourceGroupName, diskName, grantAccessData).toBlocking().single().body();
      }
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.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the AccessUriInner object if successful.