constructor Create(
    AConnection: TIdTCPConnection; 
    AYarn: TIdYarn; 
    AList: TIdThreadList = nil
); virtual; reintroduce;

Create is the reintroduced constructor for the client session context. 

AConnection is the peer connection for the client session created in a listener thread for the server. 

AYarn is the thread or fiber to use when executing the task for the client connection created in a listener thread for the server. 

AList is the list of session contexts that exist in the server, and owns the new session context. 

Create calls the inherited constructor using AYarn as the owner of the task. Create stores the value in AConnection in the Connection property. The value in AList is stored in a private member used for the other session contexts that exist in the server. When AList contains a valid non-null instance, the new session context from the constructor is added to the internal list of session contexts. 

Use Destroy to free the session context.