What role do local micro-financiers play in de-risking private equity investments in unbanked emerging market sectors?

PE firms struggle to reach unbanked sectors (e.g., smallholder farmers in Kenya) due to lack of credit data and trust . Local micro-financiers have on-the-ground insights but lack capital. How do these partnerships work? Does a PE firm fund a micro-financier to lend to farmers, then take equity in the resulting supply chain? I seek data on default rates, customer acquisition costs, and how micro-financier partnerships compare to direct investments in terms of risk and returns.