I am getting an error when adding an if else condition inside the async function in Angular. I need to have a return to avoid the error in my async function

  asyncFunction: (value) => {
      if (value.includes('SAMPLESTRING')) {
        const getApplication = this.myService.getApplication({ id: value })
        .pipe(map(({ Application }) => Application))
        
      } else {
        const getApplication = this.myService.getApplication({ name: value })
        .pipe(map(({ Applications }) => Applications))
      }  

      return getApplication;
    }