self.idx_to_token = list(sorted(set(['<unk>'] + reserved_tokens + [
            token for token, freq in self.token_freqs if freq >= min_freq])))
I want you to rewrite this code without using comprehension
Here's the rewritten code without using a list comprehension:

`self.idx_to_token = sorted(set(['<unk>'] + reserved_tokens)) for token, freq in self.token_freqs: if freq >= min_freq: self.idx_to_token.append(token)`
```
high_frequency_tokens = []
for token, freq in self.token_freqs:
    if freq >= min_freq:
        high_frequency_tokens.append(token)
self.idx_to_token = list(sorted(set(['<unk>'] + reserved_tokens + high_frequency_tokens)))
```