code: function _loadEntityAttribute(attribute) {
      expect(_methods).to.not.have.ownProperty(
        attribute.name,
        'failed to load entity attribute "' + attribute.name + '" because ' +
        'there is a method with same name in the current Entity and it cannot ' +
        'be overloaded'
      );
  
      if (_Entity.General) {
        expect(_Entity.General.attributes).to.not.have.ownProperty(
          attribute.name,
          'failed to load entity attribute "' + attribute.name + '" because ' +
          'there is an attribute with same name in a parent of current Entity ' +
          'and it cannot be overriden'
        );
  
        expect(_Entity.General.methods).to.not.respondTo(
          attribute.name,
          'failed to load entity attribute "' + attribute.name + '" because ' +
          'there is a method with same name in a parent of current Entity ' +
          'and it cannot be overriden'
        );
      }
  
      var entitySpecializations = _Entity.specializations;
      for (var specialization in entitySpecializations) {
        expect(entitySpecializations[specialization].specification.attributes)
          .to.not.have.ownProperty(
          attribute.name,
          'failed to load entity attribute "' + attribute.name + '" because ' +
          'there is an attribute with same name in a child of current Entity'
        );
  
        expect(entitySpecializations[specialization].specification.methods)
          .to.not.have.ownProperty(
          attribute.name,
          'failed to load entity attribute "' + attribute.name + '" because ' +
          'there is a method with same name in a child of current Entity'
        );
      }
  
      _Entity.adapter.loadEntityAttribute(_Entity, attribute);
    }
docs: Loads an attribute of the Entity that is associated with the current
  specification.
  @name
  module:back4app-entity/models.EntitySpecification~_loadEntityAttribute
  @function
  @param {!module:back4app-entity/models/attributes.Attribute} attribute The
  attribute to be loaded.
  @private
  @example
  _loadEntityAttribute(someAttribute);