This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

## Query Parameters with a Pydantic Model { #query-parameters-with-a-pydantic-model }

class FormModelRequiredListStr(BaseModel):
    p: list[str]


@app.post("/model-required-list-str", operation_id="model_required_list_str")
def read_model_required_list_str(p: Annotated[FormModelRequiredListStr, Form()]):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",
    ["/required-list-str", "/model-required-list-str"],
)
def test_required_list_str_schema(path: str):
    openapi = app.openapi()

     * the returned model and must not rely on the input model being updated.
     *
     * @param model The model to interpolate, must not be {@code null}.
     * @param projectDir The project directory, may be {@code null} if the model does not belong to a local project but
     *            to some artifact's metadata.
     * @param request The model building request that holds further settings, must not be {@code null}.

 */
package org.apache.maven.model.normalization;

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.model.Build;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.Plugin;

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

import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;

/**
 * Handles inheritance of model values.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */

 * under the License.
 */
package org.apache.maven.model.building;

import java.io.File;

import org.apache.maven.model.Model;

/**
 * Builds the effective model from a POM.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelBuilder {

    /**
     * Builds the effective model of the specified POM.
     *

package projects

import configurations.PerformanceTest
import jetbrains.buildServer.configs.kotlin.Project
import model.CIBuildModel
import model.PerformanceTestBucketProvider
import model.PerformanceTestCoverage
import model.PerformanceTestProjectSpec
import model.Stage

abstract class PerformanceTestProject(
    model: CIBuildModel,
    val spec: PerformanceTestProjectSpec,
    val performanceTests: List<PerformanceTest>,
) : Project({

import org.apache.maven.model.InputLocation;
import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;

              <exclude>org.apache.maven.model.*#setOtherLocation(java.lang.Object,org.apache.maven.model.InputLocation):METHOD_REMOVED</exclude>
              <exclude>org.apache.maven.model.ConfigurationContainer#isInheritanceApplied():METHOD_REMOVED</exclude>
              <exclude>org.apache.maven.model.ConfigurationContainer#setInherited(boolean):METHOD_REMOVED</exclude>

class BodyModelRequiredListStr(BaseModel):
    p: list[str]


@app.post("/model-required-list-str", operation_id="model_required_list_str")
def read_model_required_list_str(p: BodyModelRequiredListStr):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",
    ["/required-list-str", "/model-required-list-str"],
)
def test_required_list_str_schema(path: str):
    openapi = app.openapi()