[
 {
  "op": "add",
  "path": "/definitions/SchemaInputAttribute/properties/SubType/maxLength",
  "value": 255
 },
 {
  "op": "add",
  "path": "/definitions/SchemaInputAttribute/properties/SubType/pattern",
  "value": "^[a-zA-Z_0-9- ]*$"
 }
]
