pub fn stages(mut self, input: crate::model::Stage) -> Self {
            let mut v = self.stages.unwrap_or_default();
            v.push(input);
            self.stages = Some(v);
            self
        }
/// Appends an item to `stages`.
///
/// To override the contents of this collection use [`set_stages`](Self::set_stages).
///
/// <p>A list of stages that the escalation plan or engagement plan uses to engage contacts and contact methods.</p>
Appends an item to `stages`.
To override the contents of this collection use [`set_stages`](Self::set_stages).

A list of stages that the escalation plan or engagement plan uses to engage contacts and contact methods.
Appends an item to ` stages ` . To override the contents of this collection use [ ` set_stages ` ] ( Self :: set_stages ) . A list of stages that the escalation plan or engagement plan uses to engage contacts and contact methods .
pub fn stages(mut self, input: crate::model::Stage) -> Self {
            let mut v = self.stages.unwrap_or_default();
            v.push(input);
            self.stages = Some(v);
            self
        }
pub fn stages ( mut self , input : crate :: model :: Stage ) -> Self { let mut v = self . stages . unwrap_or_default ( ) ; v . push ( input ) ; self . stages = Some ( v ) ; self }
Appends an item to `stages`.
Appends an item to ` stages ` .
mut self
input
crate::model::Stage
mut self
input
crate::model::Stage