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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 from_email(self, value):
 """The email address of the sender :param value: The email address of the sender :type value: From, str, tuple """

        if isinstance(value, str):
            value = From(value, None)
        if isinstance(value, tuple):
            value = From(value[0], value[1])
        self._from_email = value