How to replace buildQuery on gridfilters plugin on ExtJs 6?

Question

I am using Extjs 6 and I want to put filters on my grids. I used gridfilters plugin but I can't found the buildQuery method that I have used on Extjs 4. How can I replace it? this is the code in Extjs 4.2.2:

features: [{
            ftype: 'filters',
            encode: false,
            local: false,
            sorters: '',
            filters: this.createFiltres(),
            buildQuery: this.bQuery,
          }]

I added plugin: 'gridfilter' but it's not working. I need the buildQuery.