code: function createMaskingClip() {
              if (maskingClip) {
                  svg.selectAll(`#${maskingClipId}`).remove();
              }
  
              if (isAnimated) {
                  maskingClip = svg.select('.metadata-group')
                    .append('clipPath')
                      .attr('id', maskingClipId)
                      .attr('class', 'clip-path')
                        .append('rect')
                          .attr('width', 0)
                          .attr('height', height);
  
                  d3Selection.select(`#${maskingClipId} rect`)
                      .transition()
                      .ease(ease)
                      .duration(clipDuration)
                      .attr('width', width);
              }
          }
docs: Creates a masking clip that would help us fake an animation if the
  proper flag is true
  
  @return {void}