Use `{...}` in output fields

I want to read (modify) and write a BibTeX file all while preserving as much as possible (to help version management).

Here is my bib-file:

@article{foo2022,
  title = {I want to preserve all order to help version management},
  author = {Foo, B.},
  year = {2022},
  journal = {Bitbucket},
  volume = {1},
  pages = {1--2},
}

Now

from pybtex.database import parse_file
bib_data = parse_file('library.bib')
print(bib_data.to_string('bibtex'))

modifies the order slightly (https://bitbucket.org/pybtex-devs/pybtex/issues/162/read-and-write-bibtex-in-exactly-the-same) but it also changes {...} around fields to "...". How can I preserve the former?

@article{foo2022,
    author = "Foo, B.",
    title = "I want to preserve all order to help version management",
    year = "2022",
    journal = "Bitbucket",
    volume = "1",
    pages = "1--2"
}

‌

(there might be options for this, there is an argument **kwargs but I could not find what options I can use)

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