public RevokeSecurityGroupEgressResult withUnknownIpPermissions(java.util.Collection<IpPermission> unknownIpPermissions) {
        setUnknownIpPermissions(unknownIpPermissions);
        return this;
    }
<p>
The outbound rules that were unknown to the service. In some cases, <code>unknownIpPermissionSet</code> might be
in a different format from the request parameter.
</p>

@param unknownIpPermissions
       The outbound rules that were unknown to the service. In some cases, <code>unknownIpPermissionSet</code>
       might be in a different format from the request parameter.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/RevokeSecurityGroupEgressResult.java