How to get file path from file uri on ios using iOS File Picker?

I am using iOS File Picker package to load a file from ios devices.It will return file uri and i need to get file path from the URI.But i havenot found any package to convert file uri to file path for ios .
There is native filepath package in android which will return filepath from fileuri .
I havenot found any solution for this in Ios.
Can anybody help me to solve this issue