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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 _handle_template_param_value(self):
 """Handle a template parameter's value at the head of the string."""

        self._emit_all(self._pop())
        self._context ^= contexts.TEMPLATE_PARAM_KEY
        self._context |= contexts.TEMPLATE_PARAM_VALUE
        self._emit(tokens.TemplateParamEquals())