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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_field_comment(field, separator=' - '):
 """ Create SQL comment from field's title and description :param field: tableschema-py Field, with optional 'title' and 'description' values :param separator: :return: 'my_title - my_desc' 'my_title' 'my_description' '' """

    title = field.descriptor.get('title') or ''
    description = field.descriptor.get('description') or ''
    return _get_comment(description, title, separator)