parameters: (self, buffer_name)
docstring: Focus the buffer with the given name on the focus stack.
docstring_summary: Focus the buffer with the given name on the focus stack.
docstring_tokens: Focus the buffer with the given name on the focus stack .
function: def focus(self, buffer_name):
          """
          Focus the buffer with the given name on the focus stack.
          """
          self.buffers.focus(self, buffer_name)
function_tokens: def focus ( self , buffer_name ) : self . buffers . focus ( self , buffer_name )