[
{
  "_type": "Index",
  "objectType": "Phone",
  "name": "name",
  "propertyName": "name",
  "propertyType": "string"
},
{
  "_type": "Index",
  "name": "another",
  "objectType": ["Phone", "Contact"],
  "propertyName": "field",
  "propertyType": "string",
  "locale": "en_US",
  "collation": "default",
  "casePreference": "IgnoreCase"
},
{
  "_type": "Index",
  "name": "noObjectType",
  "propertyName": "field",
  "propertyType": "string"
}
]