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Solve the following problem using Python, implementing the functions described below, one line at a time
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<USER_TASK:>
Description:
 def LoadAvatarFromFile(self, Filename, AvatarId=1):
 """Loads user avatar picture from file. :Parameters: Filename : str Name of the avatar file. AvatarId : int Optional avatar Id. """

        s = 'AVATAR %s %s' % (AvatarId, path2unicode(Filename))
        self._Skype._DoCommand('SET %s' % s, s)