pub fn health_check_observations(
            mut self,
            input: crate::model::HealthCheckObservation,
        ) -> Self {
            let mut v = self.health_check_observations.unwrap_or_default();
            v.push(input);
            self.health_check_observations = Some(v);
            self
        }
/// Appends an item to `health_check_observations`.
///
/// To override the contents of this collection use [`set_health_check_observations`](Self::set_health_check_observations).
///
/// <p>A list that contains one <code>HealthCheckObservation</code> element for each Amazon Route 53 health checker that is reporting a status about the health check endpoint.</p>
Appends an item to `health_check_observations`.
To override the contents of this collection use [`set_health_check_observations`](Self::set_health_check_observations).

A list that contains one HealthCheckObservation element for each Amazon Route 53 health checker that is reporting a status about the health check endpoint.
Appends an item to ` health_check_observations ` . To override the contents of this collection use [ ` set_health_check_observations ` ] ( Self :: set_health_check_observations ) . A list that contains one HealthCheckObservation element for each Amazon Route 53 health checker that is reporting a status about the health check endpoint .
pub fn health_check_observations(
            mut self,
            input: crate::model::HealthCheckObservation,
        ) -> Self {
            let mut v = self.health_check_observations.unwrap_or_default();
            v.push(input);
            self.health_check_observations = Some(v);
            self
        }
pub fn health_check_observations ( mut self , input : crate :: model :: HealthCheckObservation , ) -> Self { let mut v = self . health_check_observations . unwrap_or_default ( ) ; v . push ( input ) ; self . health_check_observations = Some ( v ) ; self }
Appends an item to `health_check_observations`.
Appends an item to ` health_check_observations ` .
mut self
input
crate::model::HealthCheckObservation
mut self
input
crate::model::HealthCheckObservation