exports.store = {
  myStoreFunction: function(){
    
  },
  
  Model: function(a, b, callback){
    if(typeof b == 'function'){
      callback = b;
      b = '';
    }
    return this.parent(a+b, callback);
  }
};

exports.definition = {
  myDefinitionFunction: function(){
    
  }
}
exports.store = {
  myStoreFunction: function(){
    
  },
  
  Model: function(a, b, callback){
    if(typeof b == 'function'){
      callback = b;
      b = '';
    }
    return this.callParent(a+b, callback);
  }
};

exports.definition = {
  myDefinitionFunction: function(){
    
  }
}
test fix