Method: Prepare template for email body based on event type.
Method: Get email ids of user. If email passed then add it to email property.
Class: The email helper class.
Method: Initialize email class.
Method: Add an email to the currently sending list.
Action Hook: Hook triggered before an email added to current sending list.
Action Hook: Action triggered after adding email template tag.
Filter Hook: Filter for adding default email template.
Method: Add template tags.
Method: Get default template for an email.