pub fn external_id_property(
        &self,
    ) -> std::option::Option<&std::collections::HashMap<std::string::String, std::string::String>>
    {
        self.external_id_property.as_ref()
    }
/// <p>A mapping of external IDs to property names. External IDs uniquely identify properties from external data stores.</p>
A mapping of external IDs to property names. External IDs uniquely identify properties from external data stores.
A mapping of external IDs to property names . External IDs uniquely identify properties from external data stores .
pub fn external_id_property(
        &self,
    ) -> std::option::Option<&std::collections::HashMap<std::string::String, std::string::String>>
    {
        self.external_id_property.as_ref()
    }
pub fn external_id_property ( & self , ) -> std :: option :: Option < & std :: collections :: HashMap < std :: string :: String , std :: string :: String > > { self . external_id_property . as_ref ( ) }
<p>A mapping of external IDs to property names.
<p > A mapping of external IDs to property names .
&self
&self