code: @SuppressWarnings("unchecked")
    public <T extends TypedValue> T getVariableLocalTyped(String variableName) {
      TypedValue variable = associationManager.getVariableLocal(variableName);
      return variable != null ? (T) variable : null;
    }
docs: @param variableName
  the name of the local process variable for which the value is to
  be retrieved
  @return the typed value of the provided local process variable or 'null' if
  no such variable is set
  
  @since 7.3