Returns the EOPatch with added features.

        :param eopatch: input EOPatch
        :type eopatch: EOPatch
        :param data: data to be added to the feature
        :type data: object
        :return: input EOPatch with the specified feature
        :rtype: EOPatch

def execute(self, eopatch, data):
        """Returns the EOPatch with added features.

        :param eopatch: input EOPatch
        :type eopatch: EOPatch
        :param data: data to be added to the feature
        :type data: object
        :return: input EOPatch with the specified feature
        :rtype: EOPatch
        """
        if self.feature_name is None:
            eopatch[self.feature_type] = data
        else:
            eopatch[self.feature_type][self.feature_name] = data

        return eopatch