func (c *kesClient) HMAC(ctx context.Context, keyID string, msg []byte) ([]byte, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.HMAC(context.Background(), keyID, msg)
}

// DescribePolicy describes a policy by returning its metadata.
// e.g. who created the policy at which point in time.
func (c *kesClient) DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error) {
	c.lock.RLock()

And your **FastAPI** application might also be composed of several files/modules, etc.

### **FastAPI** app file

Let's say you have a file structure as described in [Bigger Applications](bigger-applications.md){.internal-link target=_blank}:

```
.
├── app
│   ├── __init__.py
│   └── main.py
```

In the file `main.py` you have your **FastAPI** app:

 * under the License.
 */
package org.apache.maven.api.services.model;

import java.nio.file.Path;
import java.util.List;
import java.util.Map;

/**
 * Describes the environmental context used to determine the activation status of profiles.
 *
 */
public interface ProfileActivationContext {
    /**
     * Key of the property containing the project's packaging.

  // ResourceRules describes what operations on what resources/subresources the ValidatingAdmissionPolicy matches.
  // The policy cares about an operation if it matches _any_ Rule.
  // +listType=atomic
  // +optional
  repeated NamedRuleWithOperations resourceRules = 3;

### Technical Details: `root_path`

When you mount a sub-application as described above, FastAPI will take care of communicating the mount path for the sub-application using a mechanism from the ASGI specification called a `root_path`.

That way, the sub-application will know to use that path prefix for the docs UI.

  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
  // +optional
  optional FlowSchemaStatus status = 3;
}

// FlowSchemaCondition describes conditions for a FlowSchema.
message FlowSchemaCondition {
  // `type` is the type of the condition.
  // Required.
  optional string type = 1;

  // `status` is the status of the condition.

  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
  // +optional
  optional FlowSchemaStatus status = 3;
}

// FlowSchemaCondition describes conditions for a FlowSchema.
message FlowSchemaCondition {
  // `type` is the type of the condition.
  // Required.
  optional string type = 1;

  // `status` is the status of the condition.

  // API server instances report the version they can decode and the version they
  // encode objects to when persisting objects in the backend.
  optional StorageVersionStatus status = 3;
}

// Describes the state of the storageVersion at a certain point.
message StorageVersionCondition {
  // Type of the condition.
  // +required
  optional string type = 1;

  // Status of the condition, one of True, False, Unknown.

  /**
   * Returns a {@link Collection} of all the permutations of the specified {@link Iterable}.
   *
   * <p><i>Notes:</i> This is an implementation of the algorithm for Lexicographical Permutations
   * Generation, described in Knuth's "The Art of Computer Programming", Volume 4, Chapter 7,
   * Section 7.2.1.2. The iteration order follows the lexicographical order. This means that the

 * under the License.
 */
package org.apache.maven.internal.impl.model;

import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.ModelProblem;

/**
 * Describes a problem that was encountered during model building. A problem can either be an exception that was thrown
 * or a simple string message. In addition, a problem carries a hint about its source, e.g. the POM file that exhibits