expectUnchanged();
    assertTrue(collection.contains(e0()));
  }

  /*
   * AbstractCollection fails the removeAll(null) test when the subject
   * collection is empty, but we'd still like to test removeAll(null) when we
   * can. We split the test into empty and non-empty cases. This allows us to
   * suppress only the former.
   */

  @CollectionFeature.Require(SUPPORTS_REMOVE)

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

import java.util.function.Supplier;
import java.util.stream.Stream;

import javax.security.auth.Subject;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

/// note

`data` and `raw_data` are mutually exclusive. You can only set one of them on each `ServerSentEvent`.

///

## Resuming with `Last-Event-ID` { #resuming-with-last-event-id }

When a browser reconnects after a connection drop, it sends the last received `id` in the `Last-Event-ID` header.

You can read it as a header parameter and use it to resume the stream from where the client left off:

comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.

## Scope

This Code of Conduct applies within all community spaces and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,

    permissions:
      issues: write
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/stale@v10
        with:
          operations-per-run: 50
          remove-stale-when-updated: false

          only-issue-labels: ':wave: team-triage'
          days-before-issue-stale: 14
          stale-issue-label: to-triage
          stale-issue-message: ""
          days-before-issue-close: -1

  fun noNewExchangesOnConnection() {
    codec.carrier.noNewExchanges()
  }

  fun cancel() {
    codec.cancel()
  }

  /**
   * Revoke this exchange's access to streams. This is necessary when a follow-up request is
   * required but the preceding exchange hasn't completed yet.
   */
  fun detachWithViolence() {
    codec.cancel()
    call.messageDone(
      exchange = this,
      requestDone = true,

* Previous steps before starting

Up to this point, with all the tutorials in the docs, you have probably been running a **server program**, for example, using the `fastapi` command, that runs Uvicorn, running a **single process**.

When deploying applications you will probably want to have some **replication of processes** to take advantage of **multiple cores** and to be able to handle more requests.

# TODO: pv2 should this return strings instead?
def decimal_encoder(dec_value: Decimal) -> int | float:
    """
    Encodes a Decimal as int if there's no exponent, otherwise float

    This is useful when we use ConstrainedDecimal to represent Numeric(x,0)
    where an integer (but not int typed) is used. Encoding this as a float
    results in failed round-tripping between encode and parse.
    Our Id type is a prime example of this.

		// Token was issued. If present, it MUST contain the OAuth
		// 2.0 Client ID of this party. This Claim is only needed
		// when the ID Token has a single audience value and that
		// audience is different than the authorized party. It MAY
		// be included even when the authorized party is the same
		// as the sole audience. The azp value is a case sensitive
		// string containing a StringOrURI value

class Subscription(BaseModel):
    username: str
    monthly_fee: float
    start_date: datetime


@app.webhooks.post("new-subscription")
def new_subscription(body: Subscription):
    """
    When a new user subscribes to your service we'll send you a POST request with this
    data to the URL that you register for the event `new-subscription` in the dashboard.
    """


@app.get("/users/")
def read_users():