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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 is_syscall_addr(self, addr):
 """ Return whether or not the given address corresponds to a syscall implementation. """

        if self.kernel_base is None or addr < self.kernel_base:
            return False

        addr -= self.kernel_base

        if addr % self.syscall_addr_alignment != 0:
            return False

        addr //= self.syscall_addr_alignment
        return addr <= self.unknown_syscall_number