Google Apps Security and Compliance Services Web Services Application Programming Interface Guide, Early Access Version 1.5 - Manual (Page 51)

User Sync API 49
• Control -- Determines the amount of detailed information returned for each
user. This is required.
Type: GetUsersControl.
A GetUsersControl element has these sub-elements:
• ReturnAliases -- If true, the response returns all aliases for each user.
This is required.
Type: boolean
ReturnAttributes -- If true, the response returns all User API Attributes
for each user. This is required. For more information about attributes,
see “Summary” on page 42.
Type: boolean
• ReturnApprovedSenderAddresses -- If true, the response returns all
approved sender addresses for each user. This is required.
Type: boolean
• ReturnBlockedSenderAddresses -- If true, the response returns all
blocked sender addresses for each user. This is required.
Type: boolean