How to use the conseiljs.ConseilOperator.BETWEEN function in conseiljs

function changeSingle (val: string) {
    const l = val.split(',').map(v => v.trim());
    onChange([l[0]]);
  }

  function changeRange(val: string, index: number) {
    values[index] = val;
    onChange(values);
  }

  function changeList(val: string) {
    onChange([...(new Set(val.split(',').map(v => v.trim())))]);
  }

  // Render specific input type based on operators
  if (operator === ConseilOperator.BETWEEN) {
    return (
      
         changeRange(val, 0)}
        />
        <hr>
        {t('components.valueInput.and')}
        <hr>
         changeRange(val, 1)}
        /&gt;

selectedFilters.forEach((filter: Filter) => {
    if ((filter.operator === ConseilOperator.BETWEEN || filter.operator === ConseilOperator.IN || filter.operator === 'notin') && filter.values.length === 1) {
      return true;
    }

    if (filter.operator !== ConseilOperator.ISNULL && filter.operator !== 'isnotnull' && (filter.values.length === 0 || filter.values[0].length === 0)) {
        return true;
    }

    let isInvert = false;
    let operator: any = filter.operator;
    if (filter.operator === 'isnotnull') {
      isInvert = true;
      operator = ConseilOperator.ISNULL;
    } else if (filter.operator === 'noteq') {
      operator = ConseilOperator.EQ;
      isInvert = true;
    } else if (filter.operator === 'notstartWith') {

filters,
      operators,
      availableValues,
      onSubmit,
      t
    } = this.props;
    const entityName = selectedEntity.replace(/_/gi, ' ').slice(0, -1);

    const filterLength = filters.length;
    let disableAddFilter = true;
    const lastFilter: any = filterLength > 0 ? filters[filterLength - 1] : {};
    if (filterLength === 0) {
      disableAddFilter = false;
    } else if (lastFilter.operator === ConseilOperator.ISNULL || lastFilter.operator === 'isnotnull') {
      disableAddFilter = false;
    } else if(lastFilter.operator === ConseilOperator.BETWEEN) {
      disableAddFilter = lastFilter.values.length !== 2;
    } else if (lastFilter.values[0] !== '') {
      disableAddFilter = false;
    }
    const newAttributes = attributes.filter((attr: any) => { return !attr.cardinality || attr.cardinality > 1; });

    return (
      
        
          {filters.map((filter: Filter, index) => {
            const filterAttr = newAttributes.find(attr => attr.name === filter.name);
            return (