How to use the paraview-lite/src/stores/types.Actions.PROXY_DATA_FETCH function in paraview-lite

sources.forEach((proxy) => {
              commit(Mutations.PROXY_SOURCE_TO_REPRESENTATION_SET, proxy);

              // Fetch proxy data if not available
              if (!state.proxyDataMap[proxy.id]) {
                dispatch(Actions.PROXY_DATA_FETCH, { proxyId: proxy.id });
              }

              // Fetch proxy name if not available
              if (!state.proxyNames[proxy.id]) {
                dispatch(Actions.PROXY_NAME_FETCH, proxy.id);
              }

              // Fetch representation data if not available
              if (!state.proxyDataMap[proxy.rep]) {
                dispatch(Actions.PROXY_DATA_FETCH, { proxyId: proxy.rep });
              }

              // Fetch representation name if not available
              if (!state.proxyNames[proxy.rep]) {
                dispatch(Actions.PROXY_NAME_FETCH, proxy.rep);
              }
            });

function apply() {
    if (this.create) {
      return;
    }
    if (this.isNetworkBusy && !scheduledApply) {
      scheduledApply = setTimeout(() => {
        scheduledApply = null;
        apply.apply(this);
      }, 100);
    }
    if (this.isNetworkBusy < 3 && hasChange()) {
      // console.log('apply', JSON.stringify(changeSet, null, 2));
      store.dispatch(Actions.PROXY_UPDATE, changeSet);
      store.dispatch(Actions.PROXY_DATA_FETCH, {
        proxyId: this[`active${proxyType}Id`],
        needUI: false,
      });
    }
  }

.then(() => {
            dispatch(Actions.PROXY_DATA_FETCH, {
              proxyId: representationId,
              needUI: false,
            });
          })
          .catch(console.error);