public void add(double x, double y) {
    // We extend the recursive expression for the one-variable case at Art of Computer Programming
    // vol. 2, Knuth, 4.2.2, (16) to the two-variable case. We have two value series x_i and y_i.
    // We define the arithmetic means X_n = 1/n \sum_{i=1}^n x_i, and Y_n = 1/n \sum_{i=1}^n y_i.
    // We also define the sum of the products of the differences from the means

	child := Child{ParentID: &parent.ID, Parent: &parent}
	DB.Create(&child)

	parent.FavChildID = child.ID
	parent.FavChild = &child
	DB.Save(&parent)

	var parent1 Parent
	DB.First(&parent1, parent.ID)
	AssertObjEqual(t, parent, parent1, "ID", "FavChildID")

	// Save and Updates is the same
	DB.Updates(&parent)
	DB.First(&parent1, parent.ID)
	AssertObjEqual(t, parent, parent1, "ID", "FavChildID")
}

          required: true
        - label: >
            I have read and understood the [contribution
            guidelines](https://github.com/google/guava/wiki/HowToContribute#feature-requests).
          required: true
        - label: >
            I have read and understood
            [Guava's philosophy](https://github.com/google/guava/wiki/PhilosophyExplained), and

## Steps to Reproduce (for bugs)
<!--- Provide a link to a live example, or an unambiguous set of steps to -->
<!--- reproduce this bug. Include code to reproduce, if relevant -->
<!--- and make sure you have followed https://github.com/minio/minio/tree/release/docs/debugging to capture relevant logs -->

1.
2.
3.
4.

## Context
<!--- How has this issue affected you? What are you trying to accomplish? -->

    * And validators allow complex data schemas to be clearly and easily defined, checked and documented as JSON Schema.
    * You can have deeply **nested JSON** objects and have them all validated and annotated.
* **Extensible**:
    * Pydantic allows custom data types to be defined or you can extend validation with methods on a model decorated with the validator decorator.

}

// Validate - validates the lifecycle configuration
func (lc Lifecycle) Validate(lr lock.Retention) error {
	// Lifecycle config can't have more than 1000 rules
	if len(lc.Rules) > 1000 {
		return errLifecycleTooManyRules
	}
	// Lifecycle config should have at least one rule
	if len(lc.Rules) == 0 {
		return errLifecycleNoRule
	}

	// Validate all the rules in the lifecycle config

// 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 (
	"io"
	"net/http"
	"net/http/httptest"
	"testing"

            bool,
            Doc(
                """
                Configuration passed to Pydantic to define if the response data
                should have all the fields, including the ones that were not set and
                have their default values. This is different from
                `response_model_exclude_defaults` in that if the fields are set,

   */
  public static final MediaType VND_REAL_AUDIO = createConstant(AUDIO_TYPE, "vnd.rn-realaudio");

  /**
   * WAVE format, as defined by <a href="https://tools.ietf.org/html/rfc2361">RFC 2361</a>.
   *
   * @since 20.0
   */
  public static final MediaType VND_WAVE_AUDIO = createConstant(AUDIO_TYPE, "vnd.wave");

  /* video types */
  public static final MediaType MP4_VIDEO = createConstant(VIDEO_TYPE, "mp4");

        suggester.createIndexIfNothing();
        Thread.sleep(100);

        // Verify initial state - should have one index
        GetAliasesResponse aliasResponse = client.admin().indices().prepareGetAliases(suggester.getIndex()).execute().actionGet();
        assertTrue("Should have at least one index initially", aliasResponse.getAliases().size() >= 1);

        // Create next index - this is the main method we're testing