How to install and use topojson in Power BI custom visual

Hi,

I am developing a custom visual which is related to Map.

I am using D3 library for this. To draw a map, D3 is using topojson. 

I don't know where should I refer the topojson library in the custom visual.

I am referring the below link to develope the custom visual.

http://blog.jongallant.com/2016/11/pbiviz-12-d3-35-reference/

I need a detailed explanation on how to install topojson library? where should I refer that? and how to use that in the javascript file?

Kindly help me. 

Thanks in advance.