Updates the subject line of an email draft.
Methods
| Method | Return type | Brief description | 
|---|---|---|
| add | Update | Updates the subject line of an email draft. | 
Detailed documentation
addUpdateSubject(subject)  
Updates the subject line of an email draft.
Parameters
| Name | Type | Description | 
|---|---|---|
| subject | String | The subject line to insert to the email draft. | 
Return
Update — This object, for chaining.