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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def establish_scp_conn(self):
 """Establish the secure copy connection."""

        ssh_connect_params = self.ssh_ctl_chan._connect_params_dict()
        self.scp_conn = self.ssh_ctl_chan._build_ssh_client()
        self.scp_conn.connect(**ssh_connect_params)
        self.scp_client = scp.SCPClient(self.scp_conn.get_transport())