ConstraintSettingInfo
Provider that signals that a target can be used as a constraint key. This is the only provider returned by a constraint_setting() target.
ConstraintSettingInfo.label
ConstraintSettingInfo.label: TargetLabelProvider that signals that a target can be used as a constraint key. This is the only provider returned by a constraint_setting() target.
ConstraintSettingInfo.label: TargetLabel