The obvious solution to this is to put the list of selected workloads into the policy itself.
However, this means anytime a workload changes (often), we need to update the policy.

Instead, the opposite was chosen: each workload will list the policies that select it.
This works out to be more efficient in common cases where policies change much less often than workloads.

(RFC 3454). Fragments of this RFC are dumped into the files in this directory and parsed by
`StringprepTablesReader` into a model that can be used at runtime.

This format is chosen to make it easy to validate that these tables are consistent with the RFC.

```
cd okhttp/src/test/resources/okhttp3/internal/idn/
ls rfc3454.*.txt | xargs -n 1 -I {} bash -c "echo {} ; cat {}" > okhttp_tables.txt

  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].

  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].

// They can prevent flapping by specifying the stabilization window, so that the
// number of replicas is not set instantly, instead, the safest value from the stabilization
// window is chosen.
message HPAScalingRules {
  // stabilizationWindowSeconds is the number of seconds for which past recommendations should be
  // considered while scaling up or scaling down.

   */
  private var noCoalescedConnections = false

  /**
   * The number of times there was a problem establishing a stream that could be due to route
   * chosen. Guarded by this.
   */
  internal var routeFailureCount = 0

  private var successCount = 0
  private var refusedStreamCount = 0

  /**

  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].

  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].

// They can prevent flapping by specifying the stabilization window, so that the
// number of replicas is not set instantly, instead, the safest value from the stabilization
// window is chosen.
message HPAScalingRules {
  // stabilizationWindowSeconds is the number of seconds for which past recommendations should be
  // considered while scaling up or scaling down.

    * <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>
    * <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>

    These two were chosen for being fairly popular and stable, but doing a quick search, you could find dozens of alternative user interfaces for OpenAPI (that you can use with **FastAPI**).

### Flask REST frameworks