def get_create_milestone_number(self, title):
        if not title:
            return None
        
        mnum = self.get_mile_stone_number(title)
        if mnum:
            return mnum
        
        
        mstone = self.get_milestones_service().create({'title': title})
    
        return mstone.number
Given a milestone title, retrieve the milestone number.
dataset/ETHPy150Open IQSS/redmine2github/src/github_issues/milestone_helper.py/MilestoneHelper.get_create_milestone_number