#### Dict { #dict }

To define a `dict`, you pass 2 type parameters, separated by commas.

The first type parameter is for the keys of the `dict`.

The second type parameter is for the values of the `dict`:

{* ../../docs_src/python_types/tutorial008_py310.py hl[1] *}

This means:

* The variable `prices` is a `dict`:

We also declare a special parameter of type `SecurityScopes`, imported from `fastapi.security`.

This `SecurityScopes` class is similar to `Request` (`Request` was used to get the request object directly).

{* ../../docs_src/security/tutorial005_an_py310.py hl[9,106] *}

## Use the `scopes` { #use-the-scopes }

The parameter `security_scopes` will be of type `SecurityScopes`.

        assertTrue(exception1.getCause() instanceof IOException);

        // Test with IllegalArgumentException
        IllegalArgumentException illegalArgException = new IllegalArgumentException("Invalid parameter");
        SsoLoginException exception2 = new SsoLoginException(message, illegalArgException);
        assertEquals(message, exception2.getMessage());
        assertTrue(exception2.getCause() instanceof IllegalArgumentException);

 * {@code *} character has no special meaning as part of a parameter. All values for type, subtype,
 * parameter attributes or parameter values must be valid according to RFCs <a
 * href="https://tools.ietf.org/html/rfc2045">2045</a> and <a
 * href="https://tools.ietf.org/html/rfc2046">2046</a>.
 *
 * <p>All portions of the media type that are case-insensitive (type, subtype, parameter attributes)

In dem Fall gibt Ihnen **FastAPI** ebenfalls die Tools, die Sie zum Erstellen brauchen.

///

Wenn wir eine Instanz der Klasse `OAuth2PasswordBearer` erstellen, übergeben wir den Parameter `tokenUrl`. Dieser Parameter enthält die URL, die der Client (das Frontend, das im Browser des Benutzers ausgeführt wird) verwendet, wenn er den `username` und das `password` sendet, um einen Token zu erhalten.

    protected int secondaryParameterOffset;
    /** Number of parameter bytes being sent in this request */
    protected int parameterCount;
    /** Offset from the start of the SMB header to the parameter bytes */
    protected int parameterOffset;
    /** Displacement of these parameter bytes from the start of the total parameter block */
    protected int parameterDisplacement;

            if openapi_examples:
                parameter["examples"] = jsonable_encoder(openapi_examples)
            elif example is not _Unset:
                parameter["example"] = jsonable_encoder(example)
            if getattr(field_info, "deprecated", None):
                parameter["deprecated"] = True
            parameters.append(parameter)
    return parameters

import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An implementation of {@link GraphConnections} for undirected graphs.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 * @param <V> Value parameter type
 */
final class UndirectedGraphConnections<N, V> implements GraphConnections<N, V> {
  private final Map<N, V> adjacentNodeValues;

## OpenAPI operationId { #openapi-operationid }

/// warning

If you are not an "expert" in OpenAPI, you probably don't need this.

///

You can set the OpenAPI `operationId` to be used in your *path operation* with the parameter `operation_id`.

You would have to make sure that it is unique for each operation.

{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py310.py hl[6] *}

                if (oldNullability && !newNullability) {
                    errors << "Parameter $idx from null accepting to non-null accepting breaking change".toString()
                } else if (!oldNullability && newNullability) {
                    warnings << "Parameter $idx nullability changed from non-nullable to nullable".toString()
                }
            }
        }