<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def set_parameters(version=None,
                   binary_path=None,
                   config_file=None,
                   *args,
                   **kwargs):
    '''
    Sets variables.

    CLI Example:

    .. code-block:: bash

        salt '*' syslog_ng.set_parameters version='3.6'
        salt '*' syslog_ng.set_parameters  binary_path=/home/user/install/syslog-ng/sbin config_file=/home/user/install/syslog-ng/etc/syslog-ng.conf

    '''
    if binary_path:
        set_binary_path(binary_path)
    if config_file:
        set_config_file(config_file)
    if version:
        version = _determine_config_version(__SYSLOG_NG_BINARY_PATH)
        write_version(version)

    return _format_return_data(0)