Macro pr_err 

macro_rules! pr_err {
    ($($arg:tt)*) => { ... };
}

Logs a message at the Error level.

Use for critical errors that require immediate attention and may prevent normal operation.

Example

use reovim_kernel::api::v1::pr_err;

let buffer_id = 42;
pr_err!("failed to save buffer {}", buffer_id);
pr_err!("critical error occurred");