Thoughts on raspberry leaf tea...?

I’m just curious if anoyone else finds this helps during labour, I don’t believe it brings labour on I truly believe that’s just an old wife’s tale however Iv drank raspberry leaf tea with 4 previous pregnancy’s and just started again at 35weeks pregnant, Iv delivered all 4 baby’s naturally and two of them with no pain relief my longest labour has been 6 hours so for me I genuinely believe the tea helps my womb contract to have a speedy labour and I’m praying it has the same effect this time anyone else tried it and agree or disagree in the beliefs on the tea I’m curious