public GetPermissionRequest withPermissionVersion(Integer permissionVersion) {
        setPermissionVersion(permissionVersion);
        return this;
    }
<p>
Specifies the version number of the RAM permission to retrieve. If you don't specify this parameter, the
operation retrieves the default version.
</p>
<p>
To see the list of available versions, use <a>ListPermissionVersions</a>.
</p>

@param permissionVersion
       Specifies the version number of the RAM permission to retrieve. If you don't specify this parameter, the
       operation retrieves the default version.</p>
       <p>
       To see the list of available versions, use <a>ListPermissionVersions</a>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ram/src/main/java/com/amazonaws/services/ram/model/GetPermissionRequest.java