But declaring the type is encouraged as that way your editor will know what will be passed as the parameter `commons`, and then it can help you with code completion, type checks, etc:

<img src="/img/tutorial/dependencies/image02.png">

## Shortcut { #shortcut }

But you see that we are having some code repetition here, writing `CommonQueryParams` twice:

//// tab | Python 3.9+

```Python

import java.io.File;
import java.nio.file.Path;
import java.util.Objects;

import org.apache.maven.building.FileSource;

/**
 * Represents a model pulled from a repository
 *
 * @since 4.0.0
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class ArtifactModelSource extends FileSource implements ModelSource {
    private final String groupId;

import javax.xml.stream.XMLStreamReader;

import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;

/**
 * @deprecated use {@code org.apache.maven.api.services.model.RootLocator} instead
 */
@Named
@Deprecated(since = "4.0.0")
public class DefaultRootLocator implements RootLocator {

    @Override
    public boolean isRootDirectory(Path dir) {

// Code generated by github.com/tinylib/msgp DO NOT EDIT.

package cmd

import (
	"bytes"
	"testing"

	"github.com/tinylib/msgp/msgp"
)

func TestMarshalUnmarshalmetacache(t *testing.T) {
	v := metacache{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {

// Code generated by "stringer -type=HandlerID -output=handlers_string.go -trimprefix=Handler msg.go handlers.go"; DO NOT EDIT.

package grid

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[handlerInvalid-0]
	_ = x[HandlerLockLock-1]
	_ = x[HandlerLockRLock-2]
	_ = x[HandlerLockUnlock-3]

                display = ParameterDisplay.PROMPT,
                allowEmpty = true,
            )
            text(
                "confirmationCode",
                "",
                label = "Confirmation Code",
                description = "Enter the value '$requiredConfirmationCode' (no quotes) to confirm the promotion",
                display = ParameterDisplay.PROMPT,
                allowEmpty = false,
            )

* Hooks (Before/After Create/Save/Update/Delete/Find)
* Eager loading with `Preload`, `Joins`
* Transactions, Nested Transactions, Save Point, RollbackTo to Saved Point
* Context, Prepared Statement Mode, DryRun Mode
* Batch Insert, FindInBatches, Find To Map
* SQL Builder, Upsert, Locking, Optimizer/Index/Comment Hints, NamedArg, Search/Update/Create with SQL Expr
* Composite Primary Key
* Auto Migrations
* Logger

            if received > self.max_content_size:
                raise HTTPException(
                    422,
                    detail={
                        "name": "ContentSizeLimitExceeded",
                        "code": 999,
                        "message": "File limit exceeded",
                    },
                )
            return message

        return inner

    async def __call__(self, scope, receive, send):

// Code generated by github.com/tinylib/msgp DO NOT EDIT.

package cmd

import (
	"bytes"
	"testing"

	"github.com/tinylib/msgp/msgp"
)

func TestMarshalUnmarshalhealingTracker(t *testing.T) {
	v := healingTracker{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {

        }
    }

    /**
     * chains a collection of {@link WorkspaceReader}s
     * @param workspaceReaderCollection the collection of readers, might be empty but never <code>null</code>
     * @return if the collection contains only one item returns the single item, otherwise creates a new
     *         {@link MavenChainedWorkspaceReader} chaining all readers in the order of the given collection.
     */