It doesn't return a large `str` containing the data in JSON format (as a string). It returns a Python standard data structure (e.g. a `dict`) with values and sub-values that are all compatible with JSON.

/// note

`jsonable_encoder` is actually used by **FastAPI** internally to convert data. But it is useful in many other scenarios.

{* ../../docs_src/behind_a_proxy/tutorial004.py hl[9] *}

y entonces no lo incluirá en el esquema de OpenAPI.

## Montando una sub-aplicación

Si necesitas montar una sub-aplicación (como se describe en [Aplicaciones secundarias - Monturas](sub-applications.md){.internal-link target=_blank}) mientras usas un proxy con `root_path`, puedes hacerlo normalmente, como esperarías.

Tudo isso, aninhado arbitrariamente.

### Defina um sub-modelo

Por exemplo, nós podemos definir um modelo `Image`:

{* ../../docs_src/body_nested_models/tutorial004.py hl[9:11] *}

### Use o sub-modelo como um tipo

E então podemos usa-lo como o tipo de um atributo:

{* ../../docs_src/body_nested_models/tutorial004.py hl[20] *}

				retryInterval := time.Duration(r.Float64() * float64(time.Second))
				logger.Info("Waiting for all MinIO IAM sub-system to be initialized.. possible cause (%v) (retrying in %s)", err, retryInterval)
				time.Sleep(retryInterval)
				continue
			}
			iamLogIf(ctx, fmt.Errorf("IAM sub-system is partially initialized, unable to write the IAM format: %w", err), logger.WarningKind)
			return
		}

		break
	}

    - tutorial/encoder.md
    - tutorial/body-updates.md
    - Dependencies:
      - tutorial/dependencies/index.md
      - tutorial/dependencies/classes-as-dependencies.md
      - tutorial/dependencies/sub-dependencies.md
      - tutorial/dependencies/dependencies-in-path-operation-decorators.md
      - tutorial/dependencies/global-dependencies.md
      - tutorial/dependencies/dependencies-with-yield.md
    - Security:

	SUB	$0x000aaa, R2, R3               // SUB $2730, R2, R3                      // 43a82ad1
	SUB	$0x000aaa, R2                   // SUB $2730, R2                          // 42a82ad1
	SUB	$0xaaa000, R2, R3               // SUB $11182080, R2, R3                  // 43a86ad1
	SUB	$0xaaa000, R2                   // SUB $11182080, R2                      // 42a86ad1

But we also pass a `list` of scopes, in this case with just one scope: `items` (it could have more).

And the dependency function `get_current_active_user` can also declare sub-dependencies, not only with `Depends` but also with `Security`. Declaring its own sub-dependency function (`get_current_user`), and more scope requirements.

In this case, it requires the scope `me` (it could require more than one scope).

/// note

    };

    /**
     * scope relationship function. Used by the graph conflict resolution policies
     *
     * @param scope a scope
     * @return true is supplied scope is an inclusive sub-scope of current one.
     */
    public boolean encloses(ArtifactScopeEnum scope) {
        final ArtifactScopeEnum s = checkScope(scope);

        // system scope is historic only - and simple

{* ../../docs_src/dependencies/tutorial007.py hl[3,5] *}

## Sub-dependencias con `yield`

Puedes tener sub-dependencias y "árboles" de sub-dependencias de cualquier tamaño y forma, y cualquiera o todas ellas pueden usar `yield`.

        when(context2.getURLPath()).thenReturn("/share/");
        when(context2.getServer()).thenReturn("server");

        base2.resolveInContext(context2, "sub/child");
        assertEquals("/share/sub/child", base2.getURLPath());
        assertEquals("\\sub\\child", base2.getUNCPath());
        assertEquals("share", base2.getShare());
    }