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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 new_binary_container(self, name):
 """Defines a new binary container to template. Binary container can only contain binary fields defined with `Bin` keyword. Examples: | New binary container | flags | | bin | 2 | foo | | bin | 6 | bar | | End binary container | """

        self._message_stack.append(BinaryContainerTemplate(name, self._current_container))