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---
source: crates/ruff_python_parser/src/lexer.rs
expression: lex_source(source)
---
## Tokens
```
[
(
FStringStart,
0..2,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
InterpolatedStringMiddle(
"normal ",
),
2..9,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Lbrace,
9..10,
),
(
Name(
Name("foo"),
),
10..13,
),
(
Rbrace,
13..14,
),
(
InterpolatedStringMiddle(
" {another} ",
),
14..27,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Lbrace,
27..28,
),
(
Name(
Name("bar"),
),
28..31,
),
(
Rbrace,
31..32,
),
(
InterpolatedStringMiddle(
" {",
),
32..35,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Lbrace,
35..36,
),
(
Name(
Name("three"),
),
36..41,
),
(
Rbrace,
41..42,
),
(
InterpolatedStringMiddle(
"}",
),
42..44,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
FStringEnd,
44..45,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Newline,
45..45,
),
]
```