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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_incomplete(var_name, dependencies):
 """ Incomplete functions don't really need to be 'builders' as they add no new real structure, but it's helpful to have a function in which we can raise a warning about the incomplete equation at translate time. """

    warnings.warn('%s has no equation specified' % var_name,
                  SyntaxWarning, stacklevel=2)

    # first arg is `self` reference
    return "functions.incomplete(%s)" % ', '.join(dependencies[1:]), []