# Templates

You can use any template engine you want with **FastAPI**.

A common choice is Jinja2, the same one used by Flask and other tools.

There are utilities to configure it easily that you can use directly in your **FastAPI** application (provided by Starlette).

## Install dependencies

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `jinja2`:

<div class="termy">

        }
        /*
         * This transform exists solely to shrink the size of the fastutil jar from 25MB to 1.7MB.
         * The keys to the map parameter are used as the names of the files to which to apply the transform - there is only one entry.
         * It would perhaps be better to do this more selectively instead of applying this transform so broadly and having
         * it just no-op in most cases.
         */

   * xStats().populationVariance() > 0.0 || yStats().populationVariance() > 0.0}). The result is
   * guaranteed to be horizontal if there is variance in the {@code x} data but not the {@code y}
   * data, and vertical if there is variance in the {@code y} data but not the {@code x} data.
   *
   * <p>This fit minimizes the root-mean-square error in {@code y} as a function of {@code x}. This

                latch.countDown();
              }
            })
        .start();

    Uninterruptibles.awaitUninterruptibly(latch);

    // See Dispatcher.LegacyAsyncDispatcher for an explanation of why there aren't really any
    // useful testable guarantees about the behavior of that dispatcher in a multithreaded
    // environment. Here we simply test that all the expected dispatches happened in some order.

        uses: actions/checkout@v4
        with:
          repository: minio/minio-iam-testing
          path: minio-iam-testing
      - name: Test import of IAM artifacts when in fresh cluster there are missing groups etc
        run: |
          make test-iam-import-with-missing-entities
  iam-import-with-openid:
    name: Test IAM import in new cluster with opendid configurations
    runs-on: ubuntu-latest

## Other middlewares

There are many other ASGI middlewares.

For example:

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn's `ProxyHeadersMiddleware`</a>

    if (bubbledTo == vacated) {
      // Could not bubble toTrickle up min levels, try moving
      // it from min level to max level (or max to min level) and bubble up
      // there.
      return heap.tryCrossOverAndBubbleUp(index, vacated, toTrickle);
    } else {
      return (bubbledTo < index) ? new MoveDesc<E>(toTrickle, elementData(index)) : null;
    }
  }

	for _, v := range ahs.healStatus {
		dst[v.Endpoint] = v.toHealingDisk()
	}

	return dst
}

// getHealLocalDiskEndpoints() returns the list of disks that need
// to be healed but there is no healing routine in progress on them.
func (ahs *allHealState) getHealLocalDiskEndpoints() Endpoints {
	ahs.RLock()
	defer ahs.RUnlock()

	var endpoints Endpoints
	for ep, healing := range ahs.healLocalDisks {

The authentication flow is similar to that of OpenID, however the token is "opaque" to MinIO - it is simply sent to the plugin for verification. CAVEAT: There is no console UI integration for this method of authentication and it is intended primarily for machine authentication.

	}
	if !f.Tag.IsEmpty() {
		if err := f.Tag.Validate(); err != nil {
			return err
		}
	}
	return nil
}

// TestTags tests if the object tags satisfy the Filter tags requirement,
// it returns true if there is no tags in the underlying Filter.
func (f *Filter) TestTags(userTags string) bool {
	if f.cachedTags == nil {
		cached := make(map[string]string)
		for _, t := range append(f.And.Tags, f.Tag) {
			if !t.IsEmpty() {