f"f-string without formatted values is just a string"
f"{{NOT a formatted value}}"
f"{{NOT 'a' \"formatted\" \"value\"}}"
f"some f-string with {a} {few():.2f} {formatted.values!r}"
f'some f-string with {a} {few(""):.2f} {formatted.values!r}'
f"{f'''{'nested'} inner'''} outer"
f"\"{f'{nested} inner'}\" outer"
f"space between opening braces: { {a for a in (1, 2, 3)}}"
f'Hello \'{tricky + "example"}\''

# output

f"f-string without formatted values is just a string"
f"{{NOT a formatted value}}"
f'{{NOT \'a\' "formatted" "value"}}'
f"some f-string with {a} {few():.2f} {formatted.values!r}"
f'some f-string with {a} {few(""):.2f} {formatted.values!r}'
f"{f'''{'nested'} inner'''} outer"
f"\"{f'{nested} inner'}\" outer"
f"space between opening braces: { {a for a in (1, 2, 3)}}"
f'Hello \'{tricky + "example"}\''