/**
* @see ScriptableFunctionBase#getFunctionSignatures()
*/
protected FunctionSignature[] getFunctionSignatures() {
FunctionSignature fs = new FunctionSignature( 4 );
fs.addParam( Object.class, true );
fs.addParam( ScriptableFunction.class, true );
fs.addParam( ScriptableFunction.class, true );
fs.addParam( ScriptableFunction.class, true );
return new FunctionSignature[] { fs };
}