get_profile_relation
Description:
[ Version ( since = "0.1.8" ) ]
public async DeviceRelation get_profile_relation (Profile profile, Cancellable? cancellable) throws Error
  public async DeviceRelation get_profile_relation (Profile profile, Cancellable? cancellable) throws Error
Gets the property relationship to the device.
Parameters:
| this | a Device instance. | 
| profile | a Profile instance | 
| cancellable | a Cancellable, or null | 
| callback | the function to run on completion | 
| user_data | the data to pass to  |