Message for requesting list of Databases.
| JSON representation | 
|---|
| { "parent" : string , "pageSize" : integer , "pageToken" : string , "filter" : string } | 
| Fields | |
|---|---|
| parent |   Required. Parent value for ListDatabasesRequest. | 
| pageSize |   Optional. The maximum number of databases to return. The service may return fewer than this value. If unspecified, 2000 is the default pageSize. The max value of pageSize will be 4000, values above max will be coerced to max. | 
| pageToken |   Optional. A page token, received from a previous  | 
| filter |   Optional. Filtering results. This field is currently not supported, its value will be ignored if passed. | 

