policy property
The policy for granting the permission. Possible string values are:
- "PERMISSION_POLICY_UNSPECIFIED" : Policy not specified. If no policy is specified for a permission at any level, then the PROMPT behavior is used by default.
 - "PROMPT" : Prompt the user to grant a permission.
 - "GRANT" : Automatically grant a permission.
 - "DENY" : Automatically deny a permission.
 
Implementation
core.String? policy;