Load SSH config file(s) from disk.

        Also (beforehand) ensures that Invoke-level config re: runtime SSH
        config file paths, is accounted for.

        .. versionadded:: 2.0

def load_ssh_config(self):
        """
        Load SSH config file(s) from disk.

        Also (beforehand) ensures that Invoke-level config re: runtime SSH
        config file paths, is accounted for.

        .. versionadded:: 2.0
        """
        # Update the runtime SSH config path (assumes enough regular config
        # levels have been loaded that anyone wanting to transmit this info
        # from a 'vanilla' Invoke config, has gotten it set.)
        if self.ssh_config_path:
            self._runtime_ssh_path = self.ssh_config_path
        # Load files from disk if we weren't given an explicit SSHConfig in
        # __init__
        if not self._given_explicit_object:
            self._load_ssh_files()