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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 assert_true(self, value, failure_message='Expected value to be True, was: {}'):
 """ Asserts that a value is true @type value: bool @param value: value to test for True """

        assertion = lambda: bool(value)
        self.webdriver_assert(assertion, unicode(failure_message).format(value))