In fact, in some cases, it will even have **two JSON Schemas** in OpenAPI for the same Pydantic model, for input and output, depending on if they have **default values**.

Let's see how that works and how to change it if you need to do that.

## Pydantic Models for Input and Output { #pydantic-models-for-input-and-output }

Let's say you have a Pydantic model with default values, like this one:

        final Date date = new Date(1);
        assertThat(new CopyOptions().convertValue(date, "aaa", Date.class), is((Object) date));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testDateConverter() throws Exception {
        assertThat(new CopyOptions().dateConverter("yyyyMMdd").convertValue(new java.util.Date(0), "aaa", String.class),

        assertEquals(2, pairs.size(), "Should have 2 pairs after replace");
        assertTrue(AvPairs.contains(pairs, AvPair.MsvAvFlags), "Should contain MsvAvFlags");
        assertTrue(AvPairs.contains(pairs, AvPair.MsvAvTimestamp), "Should still contain MsvAvTimestamp");

        AvPair result = AvPairs.get(pairs, AvPair.MsvAvFlags);
        assertEquals(newFlags, result, "Should have the new flags instance");
    }

    /**

	if sepIndex == -1 {
		return nil, fmt.Errorf("'%s' does not have a valid range value", rangeString)
	}

	offsetBeginString := byteRangeString[:sepIndex]
	offsetBegin := int64(-1)
	// Convert offsetBeginString only if its not empty.
	if len(offsetBeginString) > 0 {
		if offsetBeginString[0] == '+' {
			return nil, fmt.Errorf("Byte position ('%s') must not have a sign", offsetBeginString)

        assertEquals("\"boolKey\":\"true\"", buf.toString());
    }

    // Test append method with Date value (other object type)
    public void test_append_dateValue() {
        StringBuilder buf = new StringBuilder();
        Date date = new Date(1609459200000L);
        Supplier<Object> supplier = () -> date;

        monitorTarget.append(buf, "dateKey", supplier);
        String result = buf.toString();

import java.sql.Timestamp;
import java.util.Date;

import org.junit.Test;

/**
 * @author higa
 *
 */
public class DateConverterTest {

    /**
     * @throws Exception
     */
    @Test
    public void testGetAsObjectAndGetAsString() throws Exception {
        final DateConverter converter = new DateConverter("yyyy/MM/dd");
        final Date result = (Date) converter.getAsObject("2008/01/16");

        when(logonInfo.getLogonTime()).thenReturn(new Date());
        when(logonInfo.getLogoffTime()).thenReturn(new Date());
        when(logonInfo.getKickOffTime()).thenReturn(new Date());
        when(logonInfo.getPwdLastChangeTime()).thenReturn(new Date());
        when(logonInfo.getPwdCanChangeTime()).thenReturn(new Date());
        when(logonInfo.getPwdMustChangeTime()).thenReturn(new Date());

	}

	user.Account = Account{Number: "account-has-one-association"}

	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User
	DB.Preload("Account").Find(&user2, "id = ?", user.ID)
	CheckUser(t, user2, user)

	user.Account.Number += "new"
	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user3 User

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"encoding/binary"
	"errors"
	"fmt"

	public final fun byteCount ()J
	public fun equals (Ljava/lang/Object;)Z
	public final fun get (Ljava/lang/String;)Ljava/lang/String;
	public final fun getDate (Ljava/lang/String;)Ljava/util/Date;
	public final fun getInstant (Ljava/lang/String;)Ljava/time/Instant;
	public fun hashCode ()I
	public fun iterator ()Ljava/util/Iterator;
	public final fun name (I)Ljava/lang/String;