parameters: (f)
docstring: Add the CLEAR_VARS line to the makefile.
  
    Args:
      f: File open for writing.
docstring_summary: Add the CLEAR_VARS line to the makefile.
docstring_tokens: Add the CLEAR_VARS line to the makefile .
function: def write_clear_vars(f):
    """Add the CLEAR_VARS line to the makefile.
  
    Args:
      f: File open for writing.
    """
    f.write('include $(CLEAR_VARS)\n')
function_tokens: def write_clear_vars ( f ) : f . write ( 'include $(CLEAR_VARS)\n' )