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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 push_current(self, project):
 """Temporary changes the current project to 'project'. Should be followed by 'pop-current'."""

        if __debug__:
            from .targets import ProjectTarget
            assert isinstance(project, ProjectTarget)
        self.saved_current_project.append(self.current_project)
        self.current_project = project