This is a property of type String.
The allowed values for this property are:
- 0%
- 20%
- 40%
- 60%
- 80%
- 100%
{ "type": "PROPERTY_CONSTRAINT_SCHEMA", "constraints": { "type_constraint": "_txt", "allowed_values": [ "0%", "20%", "40%", "60%", "80%", "100%" ] } }