// module-module "all" pattern no longer closes over the dependencies of
	// tests outside of the main module.
	NarrowAllVersion = "1.16"

	// DefaultGoModVersion is the Go version to assume for go.mod files
	// that do not declare a Go version. The go command has been
	// writing go versions to modules since Go 1.12, so a go.mod
	// without a version is either very old or recently hand-written.
	// Since we can't tell which, we have to assume it's very old.

# `Response` class

You can declare a parameter in a *path operation function* or dependency to be of type `Response` and then you can set data for the response like headers or cookies.

You can also use it directly to create an instance of it and return it from your *path operations*.

You can import it directly from `fastapi`:

```python
from fastapi import Response
```

	case 'A':
		typ := r.typ()

		r.declare(types.NewTypeName(pos, r.currPkg, name, typ))

	case 'C':
		typ, val := r.value()

		r.declare(types.NewConst(pos, r.currPkg, name, typ, val))

	case 'F', 'G':
		var tparams []*types.TypeParam
		if tag == 'G' {
			tparams = r.tparamList()
		}
		sig := r.signature(nil, nil, tparams)
		r.declare(types.NewFunc(pos, r.currPkg, name, sig))

                    .severity(Severity.ERROR)
                    .details("If you don't declare the normalization, outputs can't be re-used between machines or locations on the same machine, therefore caching efficiency drops significantly")
                    .solution("Declare the normalization strategy by annotating the property with either @PathSensitive, @Classpath or @CompileClasspath");
            });

```

::: fastapi.Depends

## `Security()`

For many scenarios, you can handle security (authorization, authentication, etc.) with dependencies, using `Depends()`.

But when you want to also declare OAuth2 scopes, you can use `Security()` instead of `Depends()`.

You can import `Security()` directly from `fastapi`:

```python
from fastapi import Security
```

                    consumer,
                    producer
                ))
                .solution("Declare task '" + producer + "' as an input of '" + consumer + "'")
                .solution("Declare an explicit dependency on '" + producer + "' from '" + consumer + "' using Task#dependsOn")
                .solution("Declare an explicit dependency on '" + producer + "' from '" + consumer + "' using Task#mustRunAfter")
        );
    }

					</excludes>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.dbflute</groupId>
				<artifactId>dbflute-maven-plugin</artifactId>
				<configuration>
					<dbfluteVersion>${dbflute.version}</dbfluteVersion>
					<packageBase>org.codelibs.fess.dbflute</packageBase>
					<clientProject>fess</clientProject>
					<dbfluteClientDir>${basedir}/dbflute_fess</dbfluteClientDir>

## Dependencies errors and return values

You can use the same dependency *functions* you use normally.

### Dependency requirements

They can declare request requirements (like headers) or other sub-dependencies:

=== "Python 3.9+"

    ```Python hl_lines="8  13"
    {!> ../../../docs_src/dependencies/tutorial006_an_py39.py!}
    ```

=== "Python 3.8+"

			val := r.Value()
			declare(types.NewConst(pos, objPkg, objName, typ, val))

		case pkgbits.ObjFunc:
			pos := r.pos()
			tparams := r.typeParamNames()
			sig := r.signature(nil, nil, tparams)
			declare(types.NewFunc(pos, objPkg, objName, sig))

		case pkgbits.ObjType:
			pos := r.pos()

			obj := types.NewTypeName(pos, objPkg, objName, nil)
			named := types.NewNamed(obj, nil, nil)
			declare(obj)

# Security Tools

When you need to declare dependencies with OAuth2 scopes you use `Security()`.

But you still need to define what is the dependable, the callable that you pass as a parameter to `Depends()` or `Security()`.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.