Macro condition 

macro_rules! condition {
    ($plugin_name:ident : $name:expr; $($tokens:tt)*) => { ... };
}

Creates a condition plugin from Beetry’s leaf-node DSL.

Use when the node evaluates to success or failure without producing child nodes.

The DSL is the same as action!: receivers, senders, params, and create work the same way, but the constructed behavior must implement ConditionBehavior instead of ActionBehavior.