/**
   * Returns a {@code MapSplitter} which splits entries based on this splitter, and splits entries
   * into keys and values using the specified key-value splitter.
   *
   * <p>Note: Any configuration option configured on this splitter, such as {@link #trimResults},
   * does not change the behavior of the {@code keyValueSplitter}.
   *
   * <p>Example:
   *
   * <pre>{@code
   * String toSplit = " x -> y, z-> a ";

  /**
   * Returns a {@code MapSplitter} which splits entries based on this splitter, and splits entries
   * into keys and values using the specified key-value splitter.
   *
   * <p>Note: Any configuration option configured on this splitter, such as {@link #trimResults},
   * does not change the behavior of the {@code keyValueSplitter}.
   *
   * <p>Example:
   *
   * <pre>{@code
   * String toSplit = " x -> y, z-> a ";