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type connection is record (
    host              varchar2(255),      -- remote host name
    port              pls_integer,        -- remote port number
    tx_timeout        pls_integer,        -- transfer time out (in seconds) 
    private_tcp_con   utl_tcp.connection, -- private, for implementation use
    private_state     pls_integer         -- private, for implementation use
);
:ccool: