public List<DeclarableType> getFunctions() {
    if (functions == null) {
      functions = new ArrayList<>();
    }
    return functions;
  }
Gets the value of the function property.

<p>
This accessor method returns a reference to the live list,
not a snapshot. Therefore any modification you make to the
returned list will be present inside the JAXB object.
This is why there is not a <CODE>set</CODE> method for the function property.

<p>
For example, to add a new item, do as follows:

<pre>
getFunctions().add(newItem);
</pre>


<p>
Objects of the following type(s) are allowed in the list
{@link DeclarableType }

@return the {@link List} of {@link Function} types.
geode-core/src/main/java/org/apache/geode/cache/configuration/FunctionServiceType.java