# Response Headers { #response-headers }

## Use a `Response` parameter { #use-a-response-parameter }

You can declare a parameter of type `Response` in your *path operation function* (as you can do for cookies).

And then you can set headers in that *temporal* response object.

{* ../../docs_src/response_headers/tutorial002_py39.py hl[1, 7:8] *}

And then you can return any object you need, as you normally would (a `dict`, a database model, etc).

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.TimeUnit;
import java.util.function.Function;

import org.apache.commons.lang3.RandomUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package sql

import (
	"errors"
	"fmt"
	"strconv"
	"strings"
	"time"
)

// FuncName - SQL function name.
type FuncName string

// SQL Function name constants
const (
	// Conditionals
	sqlFnCoalesce FuncName = "COALESCE"
	sqlFnNullIf   FuncName = "NULLIF"

	// Conversion
	sqlFnCast FuncName = "CAST"

	// Date and time

    NtTransQuerySecurityDesc(final int fid, final int securityInformation) {
        this.fid = fid;
        this.securityInformation = securityInformation;
        command = SMB_COM_NT_TRANSACT;
        function = NT_TRANSACT_QUERY_SECURITY_DESC;
        setupCount = 0;
        totalDataCount = 0;
        maxParameterCount = 4;
        maxDataCount = 32768;
        maxSetupCount = (byte) 0x00;
    }

    @Override

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker;

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.function.Supplier;

import org.apache.maven.api.annotations.Nonnull;

import static java.util.Objects.requireNonNull;

/**

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli;

import java.util.function.UnaryOperator;

import com.google.inject.Binder;
import com.google.inject.Module;
import com.google.inject.name.Names;
import org.apache.maven.api.services.Interpolator;
import org.apache.maven.api.xml.XmlNode;

Esse código declara um parâmetro de consulta opcional, `q`, com o tipo `str`, e então retorna esse parâmetro.

Isso é bastante simples (e não muito útil), mas irá nos ajudar a focar em como as subdependências funcionam.

## Segunda dependência, "dependable" e "dependente" { #second-dependency-dependable-and-dependant }

    @Override
    NavigableMap<K, V> forward() {
      return ForwardingNavigableMap.this;
    }

    @Override
    public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
      forward().replaceAll(function);
    }

    @Override
    protected Iterator<Entry<K, V>> entryIterator() {
      return new Iterator<Entry<K, V>>() {
        private @Nullable Entry<K, V> toRemove = null;

                and param_details.depends.scope == "function"
            ):
                assert dependant.call
                raise DependencyScopeError(
                    f'The dependency "{dependant.call.__name__}" has a scope of '
                    '"request", it cannot depend on dependencies with scope "function".'
                )
            sub_own_oauth_scopes: list[str] = []

	lockFileFailImmediately = 1

	// see https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx
	errLockViolation syscall.Errno = 0x21
)

// lockedOpenFile is an internal function.
func lockedOpenFile(path string, flag int, perm os.FileMode, lockType uint32) (*LockedFile, error) {
	f, err := Open(path, flag, perm)
	if err != nil {
		return nil, err
	}