code: public void setTextAnchor(@Property.TEXT_ANCHOR String value) {
      jsonObject.addProperty(SymbolOptions.PROPERTY_TEXT_ANCHOR, value);
    }
docs: Set the TextAnchor property
  <p>
  Part of the text placed closest to the anchor.
  </p>
  <p>
  To update the symbol on the map use {@link SymbolManager#update(Annotation)}.
  <p>
  
  @param value constant property value for String