|event: add
      |data: 73857293
      |
      |event: remove
      |data: 2153
      |
      |event: add
      |data: 113411
      |
      |
      """.trimMargin(),
    )
    assertThat(callbacks.remove()).isEqualTo(Event(null, "add", "73857293"))
    assertThat(callbacks.remove()).isEqualTo(Event(null, "remove", "2153"))
    assertThat(callbacks.remove()).isEqualTo(Event(null, "add", "113411"))
  }

  @Test

      <version>2.0.2</version>
      <version>2.0.3</version>
      <version>2.0.4</version>
      <version>2.1.0</version>
      <version>2.1.1</version>
      <version>2.1.2</version>
      <version>2.1.3</version>
      <version>2.1.4</version>
      <version>2.2.0</version>
      <version>2.2.1</version>
      <version>2.2.2</version>
      <version>2.2.3</version>
      <version>2.3.0</version>

      <version>2.0.2</version>
      <version>2.0.3</version>
      <version>2.0.4</version>
      <version>2.1.0</version>
      <version>2.1.1</version>
      <version>2.1.2</version>
      <version>2.1.3</version>
      <version>2.1.4</version>
      <version>2.2.0</version>
      <version>2.2.1</version>
      <version>2.2.2</version>
      <version>2.2.3</version>
      <version>2.3.0</version>

      <version>2.0.2</version>
      <version>2.0.3</version>
      <version>2.0.4</version>
      <version>2.1.0</version>
      <version>2.1.1</version>
      <version>2.1.2</version>
      <version>2.1.3</version>
      <version>2.1.4</version>
      <version>2.2.0</version>
      <version>2.2.1</version>
      <version>2.2.2</version>
      <version>2.2.3</version>
      <version>2.3.0</version>

      <version>2.0.2</version>
      <version>2.0.3</version>
      <version>2.0.4</version>
      <version>2.1.0</version>
      <version>2.1.1</version>
      <version>2.1.2</version>
      <version>2.1.3</version>
      <version>2.1.4</version>
      <version>2.2.0</version>
      <version>2.2.1</version>
      <version>2.2.2</version>
      <version>2.2.3</version>
      <version>2.3.0</version>

 * An [MappedRange.InlineDelta] must be a mapping from a single code-point to a single code-point with a difference
 * that can be represented in 2^18-1.
 */
internal fun inlineDeltaOrNull(mapping: Mapping): MappedRange.InlineDelta? {
  if (mapping.hasSingleSourceCodePoint) {
    val sourceCodePoint = mapping.sourceCodePoint0
    val mappedCodePoints =