public static <K, V> ImmutableMapParameter<K, V> of(K k0, V v0) {
        Map<K, V> map = Collections.singletonMap(k0, v0);
        return new ImmutableMapParameter<K, V>(map);
    }
Returns an ImmutableMapParameter instance containing a single entry.

@param k0
           Key of the single entry.
@param v0
           Value of the single entry.
aws-java-sdk-core/src/main/java/com/amazonaws/util/ImmutableMapParameter.java