Add await in Client Module function, To read Object Data and Load Page

Hello All, 

I have created code to load Custom Page. How i can add the await in Creatio Client Module function to read Object Data

Code Sample : 

define("UsrCustomFunction", [], async functio(){
                
       // API call Terrasoft.EntitySchemaQuery, to read the creatio table.
       var getProcessData = function(){

              var esq = Ext.create("Terrasoft.EntitySchemaQuery", {
                      rootSchemaName: "UsrGUMUProcessList"
              });

              esq.addColumn("Id");
              esq.addColumn("UsrName");

              return new Promise(function(resolve, reject) {
                     esq.getEntityCollection(function(response) {
                     if (response.success) {
                             resolve(response.collection);
                      } else {
                             reject(new Error("Failed to retrieve data: " + response.errorInfo.message));
                      }
               }, this);
             });

           }

             // [ Is it possible to add await or any other solution available for this? ]
             var processData = await getProcessData(); 
            
             //Process and return the Config based on the processData.
             return {
                 viewConfigDiff: /**SCHEMA_VIEW_CONFIG_DIFF*/
             };

});

Is this good solution to Create Custom Page in Creatio or any other solutions are available, then please assist me.

Regards,

Ajay K