code: public JBBPDslBuilder VarArray(final String name, final String sizeExpression) {
      return this.VarArray(name, sizeExpression, null);
    }
docs: Create named var array with fixed size.
  
  @param name           name of the array, can be null for anonymous one
  @param sizeExpression expression to calculate size of the array, must not be null.
  @return the builder instance, must not be null