input group prepend

[robertowiestifsul]

Hello, i`am use VueJS. How can I use it with Bootstrap's input-group-prepend class. I need to add a button next to the model-select.

<b-input-group>
                    <model-select
                        id="pest_monitoring-pest"
                        :options="pests"
                        v-model="pestObj"
                        placeholder="Selecione"
                      />
                    <b-input-group-append>
                      
                      <b-button style="font-size:20px" variant="secundary" size="sm" id="show-btn" @click="showModalPest">
                        <i class="fa fa-question-circle"></i>
                      </b-button>
                    </b-input-group-append>
                  </b-input-group>