I am using Ag-grid and i just want to change placeholder text of filter.Do i need to use custom filter or this can be done via other ways as well.Please help

Below is the link of image. In which i tried to show 'filter' text for placeholder which i need to change. 

[![Example](https://i.stack.imgur.com/c54ML.jpg)](https://i.stack.imgur.com/c54ML.jpg)