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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(
"\\",
),
2..3,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Lbrace,
3..4,
),
(
Name(
Name("x"),
),
4..5,
),
(
Colon,
5..6,
),
(
InterpolatedStringMiddle(
"\\\"\\",
),
6..9,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Lbrace,
9..10,
),
(
Name(
Name("x"),
),
10..11,
),
(
Rbrace,
11..12,
),
(
Rbrace,
12..13,
),
(
InterpolatedStringMiddle(
" \\\"\\\"\\\n end",
),
13..24,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
FStringEnd,
24..25,
TokenFlags(
DOUBLE_QUOTES | F_STRING,
),
),
(
Newline,
25..25,
),
]
```