parameters: (self, branch)
docstring: set the current branch that is being worked on
docstring_summary: set the current branch that is being worked on
docstring_tokens: set the current branch that is being worked on
function: def set_branch(self, branch):
          '''set the current branch that is being worked on'''
          self.branch = branch
function_tokens: def set_branch ( self , branch ) : self . branch = branch