to 0.
			}
			$row[ $alias ]             = wc_format_decimal( floatval( $row[ $alias ] ), false, true );
			$row[ $destination_alias ] = wc_format_decimal( floatval( $row[ $destination_alias ] ), false, true );
		}
		if ( 'bool' === $schema['type'] ) {
			$row[ $alias ]             = wc_string_to_bool( $row[ $alias ] );
			$row[ $destination_alias ] = wc_string_to_bool( $row[ $destination_alias ] );
		}
		if ( 'date_epoch' === $schema['type'] ) {
			if ( '' === $row[ $alias ] || null === $row[ $alias ] ) {
				$row[ $alias ] = null;
			} else {
				$row[ $alias ] = ( new \DateTime( "@{$row[ $alias ]}" ) )->format( 'Y-m-d H:i:s' );
			}
			if ( '0000-00-00 00:00:00' === $row[ $destination_alias ] ) {
				$row[ $destination_alias ] = null;
			}
		}
		return $row;
	}

	/**
	 * Helper method to get default value of a type.
	 *
	 * @param string $type Type.
	 *
	 * @return mixed Default value.
	 */
	private function get_type_defaults( $type ) {
		switch ( $type ) {
			case 'float':
			case 'int':
			case 'decimal':
				return 0;
			case 'string':
				return '';
		}
	}
}