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package com.faunadb.client.query;

/**
 * A query language expression. Constructors for this class are at the {@link Language} class.
 * Expressions are not evaluated until sent to a FaunaDB server.
 *
 * @see Language
 */
public abstract class Expr {

  // To be used by Jackson
  protected abstract Object toJson();

  @Override
  public String toString() {
    return String.format("%s(%s)", getClass().getSimpleName(), toJson());
  }
}