Add a user to a project.
| REQUIRED | KEY | TYPE | DESCRIPTION |
|---|---|---|---|
| Yes | projectId | ID | The project's id. |
| Yes | str | The user's email. | |
| Yes | scope | list | The list of project scopes. |
| KEY | TYPE | DESCRIPTION |
|---|---|---|
| success | Boolean | true if the call succeeded, false if there was an error |
| TYPE | WHEN |
|---|---|
| DataNotFoundError | `projectId` is not found. |