SecKeychainAttributeInfo
A structure that represents an attribute.
Declaration
struct SecKeychainAttributeInfoOverview
Each tag and format item form a pair. Use SecKeychainAttributeInfoForItemID(_:_:_:) to obtain the structure for a given keychain item, and SecKeychainFreeAttributeInfo(_:) to release that structure’s memory when you are done with it. Use an instance of this structure in a call to the SecKeychainItemCopyAttributesAndData(_:_:_:_:_:_:) function to specify the attributes of a keychain item to retrieve.