input.accessibilityAttributeNames.has(AXRequired)='yes'
input.accessibilityAttributeValue(AXRequired)=0
input_required.accessibilityAttributeNames.has(AXRequired)='yes'
input_required.accessibilityAttributeValue(AXRequired)=1
not_applicable.accessibilityAttributeNames.has(AXRequired)='no'
not_applicable.accessibilityAttributeValue(AXRequired)=0