pub fn attributes(
        &self,
    ) -> std::option::Option<
        &std::collections::HashMap<crate::model::MessageSystemAttributeName, std::string::String>,
    > {
        self.attributes.as_ref()
    }
/// <p>A map of the attributes requested in <code> <code>ReceiveMessage</code> </code> to their respective values. Supported attributes:</p>
/// <ul>
/// <li> <p> <code>ApproximateReceiveCount</code> </p> </li>
/// <li> <p> <code>ApproximateFirstReceiveTimestamp</code> </p> </li>
/// <li> <p> <code>MessageDeduplicationId</code> </p> </li>
/// <li> <p> <code>MessageGroupId</code> </p> </li>
/// <li> <p> <code>SenderId</code> </p> </li>
/// <li> <p> <code>SentTimestamp</code> </p> </li>
/// <li> <p> <code>SequenceNumber</code> </p> </li>
/// </ul>
/// <p> <code>ApproximateFirstReceiveTimestamp</code> and <code>SentTimestamp</code> are each returned as an integer representing the <a href="http://en.wikipedia.org/wiki/Unix_time">epoch time</a> in milliseconds.</p>
A map of the attributes requested in  ReceiveMessage  to their respective values.
A map of the attributes requested in ReceiveMessage to their respective values .
pub fn attributes(
        &self,
    ) -> std::option::Option<
        &std::collections::HashMap<crate::model::MessageSystemAttributeName, std::string::String>,
    > {
        self.attributes.as_ref()
    }
pub fn attributes ( & self , ) -> std :: option :: Option < & std :: collections :: HashMap < crate :: model :: MessageSystemAttributeName , std :: string :: String > , > { self . attributes . as_ref ( ) }
<p>A map of the attributes requested in <code> <code>ReceiveMessage</code> </code> to their respective values.
<p > A map of the attributes requested in <code > <code > ReceiveMessage< / code > < / code > to their respective values .
&self
&self