code: public void setSymbolSpacing( Float value) {
      PropertyValue propertyValue = symbolSpacing(value);
      constantPropertyUsageMap.put(PROPERTY_SYMBOL_SPACING, propertyValue);
      layer.setProperties(propertyValue);
    }
docs: Set the SymbolSpacing property
  <p>
  Distance between two symbol anchors.
  </p>
  
  @param value property wrapper value around Float