code: public final void setShape(@NonNull final PreviewShape shape) {
          Condition.INSTANCE.ensureNotNull(shape, "The shape may not be null");
          this.shape = shape;
      }
docs: Sets the shape of the preview.
  
  @param shape
  The shape, which should be set, as a value of the enum {@link PreviewShape}. The
  shape may not be null