pub fn header_parameters(
        &self,
    ) -> std::option::Option<&std::collections::HashMap<std::string::String, std::string::String>>
    {
        self.header_parameters.as_ref()
    }
/// <p>The headers that need to be sent as part of request invoking the API Gateway REST API or EventBridge ApiDestination.</p>
The headers that need to be sent as part of request invoking the API Gateway REST API or EventBridge ApiDestination.
The headers that need to be sent as part of request invoking the API Gateway REST API or EventBridge ApiDestination .
pub fn header_parameters(
        &self,
    ) -> std::option::Option<&std::collections::HashMap<std::string::String, std::string::String>>
    {
        self.header_parameters.as_ref()
    }
pub fn header_parameters ( & self , ) -> std :: option :: Option < & std :: collections :: HashMap < std :: string :: String , std :: string :: String > > { self . header_parameters . as_ref ( ) }
<p>The headers that need to be sent as part of request invoking the API Gateway REST API or EventBridge ApiDestination.</p>
<p > The headers that need to be sent as part of request invoking the API Gateway REST API or EventBridge ApiDestination . < / p >
&self
&self