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An attribute was given an invalid number of arguments
Erroneous code example:
```compile_fail,E0805
#[inline()] // error! should either have a single argument, or no parentheses
fn foo() {}
#[inline(always, never)] // error! should have only one argument, not two
fn bar() {}
```
To fix this, either give the right number of arguments the attribute needs.
In the case of inline, this could be none at all:
```
#[inline]
fn foo() {}
```
or only one:
```
#[inline(always)]
fn foo() {}
```
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