How to use the ve-sequence-utils/getComplementSequenceString function in ve-sequence-utils

_processProps(props) {
        var {
            sequenceData,
            columnWidth
        } = props;

        var {
            sequence,
            offset,
            className
        } = sequenceData;

        var complement = getComplementSequenceString(sequence);

        var renderedSequence = columnizeString(sequence, columnWidth);
        var renderedComplement = columnizeString(complement, columnWidth);

        this.setState({
            renderedSequence: renderedSequence,
            renderedComplement: renderedComplement,
            renderedOffset: (offset || 0) + 1
        });
    }