@Override
  public @NotNull SpaceRequirements spaceExistenceTypeBetweenTokens(ASTNode left, ASTNode right) {
    return left.getPsi() instanceof Header || right.getPsi() instanceof Header ?
           SpaceRequirements.MUST_LINE_BREAK : SpaceRequirements.MUST_NOT;
  }
@Override
  public @NotNull SpaceRequirements spaceExistenceTypeBetweenTokens(ASTNode left, ASTNode right)