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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 _get_ssh_config(config_path='~/.ssh/config'):
 """Extract the configuration located at ``config_path``. Returns: paramiko.SSHConfig: the configuration instance. """

        ssh_config = paramiko.SSHConfig()
        try:
            with open(os.path.realpath(os.path.expanduser(config_path))) as f:
                ssh_config.parse(f)
        except IOError:
            pass
        return ssh_config