import okhttp3.Response

abstract class EventSourceListener {
  /**
   * Invoked when an event source has been accepted by the remote peer and may begin transmitting
   * events.
   */
  open fun onOpen(
    eventSource: EventSource,
    response: Response,
  ) {
  }

  /**
   * Invoked when a new event has been sent to the client.
   *
   * @param id The `id` line of the event, might be null.

    ]
}
```

/// info

Notice how the `images` key now has a list of image objects.

///

## Deeply nested models { #deeply-nested-models }

You can define arbitrarily deeply nested models:

{* ../../docs_src/body_nested_models/tutorial007_py310.py hl[7,12,18,21,25] *}

/// info

Notice how `Offer` has a list of `Item`s, which in turn have an optional list of `Image`s

///

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    }

    /**
     * Checks whether the asynchronous interim response has been handled.
     *
     * @return whether the interim response has been handled
     */
    public boolean isAsyncHandled() {
        return this.asyncHandled;
    }

    /**
     * Sets whether the asynchronous interim response has been handled.
     *
     * @param asyncHandled
     *            the asyncHandled to set

    int NT_STATUS_INVALID_COMPUTER_NAME = 0xC0000122;
    /** The pipe operation has failed because the other end of the pipe has been closed */
    int NT_STATUS_PIPE_BROKEN = 0xC000014b;
    /** The specified local group does not exist */
    int NT_STATUS_NO_SUCH_ALIAS = 0xC0000151;
    /** The user has not been granted the requested logon type at this computer */
    int NT_STATUS_LOGON_TYPE_NOT_GRANTED = 0xC000015b;

)

// Verify if request has JWT.
func isRequestJWT(r *http.Request) bool {
	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), jwtAlgorithm)
}

// Verify if request has AWS Signature Version '4'.
func isRequestSignatureV4(r *http.Request) bool {
	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV4Algorithm)
}

// Verify if request has AWS Signature Version '2'.

The correct place is:

* In the key `content`, that has as value another JSON object (`dict`) that contains:
    * A key with the media type, e.g. `application/json`, that contains as value another JSON object, that contains:
        * A key `schema`, that has as the value the JSON Schema from the model, here's the correct place.

* The *path operation* `read_own_items` has:
    * Required scopes `["items"]` with the dependency:
    * `get_current_active_user`:
        *  The dependency function `get_current_active_user` has:
            * Required scopes `["me"]` with the dependency:
            * `get_current_user`:
                * The dependency function `get_current_user` has:
                    * No scopes required by itself.

const (
	HasOne    RelationshipType = "has_one"      // HasOneRel has one relationship
	HasMany   RelationshipType = "has_many"     // HasManyRel has many relationship
	BelongsTo RelationshipType = "belongs_to"   // BelongsToRel belongs to relationship
	Many2Many RelationshipType = "many_to_many" // Many2ManyRel many to many relationship
	has       RelationshipType = "has"
)

type Relationships struct {
	HasOne    []*Relationship

#### `HeroCreate` - the *data model* to create a hero { #herocreate-the-data-model-to-create-a-hero }

Now we create a `HeroCreate` model, this is the one that will **validate** the data from the clients.

It has the same fields as `HeroBase`, and it also has `secret_name`.

Now, when the clients **create a new hero**, they will send the `secret_name`, it will be stored in the database, but those secret names won't be returned in the API to the clients.