/**
* @see blackberry.core.ScriptableFunctionBase#getFunctionSignatures()
*/
protected FunctionSignature[] getFunctionSignatures() {
FunctionSignature fs = new FunctionSignature( 4 );
fs.addNullableParam( TestableScriptableObject.class, false );
fs.addNullableParam( String.class, false );
fs.addNullableParam( Integer.class, false );
fs.addNullableParam( Boolean.class, false );
return new FunctionSignature[] { fs };
}