Method with_async

core/src/callable.rs:484–487

Sets whether this callable requires asynchronous dispatch.

(mut self, is_async: bool)

    /// Sets whether this callable requires asynchronous dispatch.
    pub fn with_async(mut self, is_async: bool) -> Self {
        self.is_async = is_async;
        self
    }

    /// Sets the syntax specifications for this callable.
    pub fn with_syntax(