Searches the app store using the given parameters.
searchAppStore(input: <#String (Allows Variables)#>, by: <#Type (WFAttribute)#>, region: <#Type (WFCountry)#>, device: <#Type (WFEntity)#>, limit: <#Integer#>)
searchAppStore(input: "Jellycuts", by: All, region: United States, device: iPhone, limit: 1)