Do templates must to specify defaults?

azure-pipelines-windows-template.yml

@@ -1,3 +1,13 @@
+parameters:
+  name: 'Windows x64'
+  arquitecture: 'x64'
+  qt_version: '5.12.4'
+  qt_spec: 'msvc2017_64'
+  qt_aqt_spec: 'win64_msvc2017_64'
+  vc_redist_url: 'https://go.microsoft.com/fwlink/?LinkId=746572'
+  vc_redist_file_name: 'vc_redist.x64.exe'
+  vc_vars: 'vcvars64.bat'
+
 jobs:
 - job: ${{ parameters.name }}
   pool: