message: Added missing documentation for has_separate_expression_model()
diff: @@ -345,8 +345,8 @@ public:
  };
  /**
  - * Returns true if this Morphable Model contains a colour
  - * model. Returns false if it is a shape-only model.
  + * Returns true if this Morphable Model contains a colour model. Returns false if it is a shape-only
  + * model.
  *
  * @return True if the Morphable Model has a colour model (i.e. is not a shape-only model).
  */
  @@ -355,10 +355,16 @@ public:
  return (color_model.get_mean().size() > 0);
  };
  + /**
  + * Returns true if this Morphable Model contains a separate expression model, in the form of a PcaModel or
  + * Blendshapes.
  + *
  + * @return True if the Morphable Model has a separate expression model.
  + */
  bool has_separate_expression_model() const
  {
  return expression_model.has_value();
  - }
  + };
  /**
  * Returns the texture coordinates for all the vertices in the model.
  