parameters: (output, variable_name)
docstring: Unsets a CMake variable.
docstring_summary: Unsets a CMake variable.
docstring_tokens: Unsets a CMake variable .
function: def UnsetVariable(output, variable_name):
    """Unsets a CMake variable."""
    output.write('unset(')
    output.write(variable_name)
    output.write(')\n')
function_tokens: def UnsetVariable ( output , variable_name ) : output . write ( 'unset(' ) output . write ( variable_name ) output . write ( ')\n' )