Macro server_error 

macro_rules! server_error {
    ($err:expr $(,)?) => { ... };
    ($fmt:expr, $($arg:tt)*) => { ... };
}

Provides a simple way of creating a CommandError which respesents a ServerError.

Example

use jupiter::commands::{Call, CommandResult};
fn my_command(call: &mut Call) -> CommandResult {
    Err(jupiter::server_error!("We forgot to implement this command."))
}