Vault - Creating secrets in edge functions

Hey all,
I'm trying to create a vault secret inside my edge functions, using

supabase-js

supabase-js

supabase-js

supabase-js.
Tried so many variations, both of

supabase.rpc()

supabase.rpc()

supabase.rpc()

supabase.rpc() and

supabase.select()

supabase.select()

supabase.select()

supabase.select()

but nothing works.
The RPC call throws this -

Could not find the function public.vault.create_secret(secret_description, secret_name, secret_value) in the schema cache

Could not find the function public.vault.create_secret(secret_description, secret_name, secret_value) in the schema cache

Could not find the function public.vault.create_secret(secret_description, secret_name, secret_value) in the schema cache

Could not find the function public.vault.create_secret(secret_description, secret_name, secret_value) in the schema cache

he select throws this -

failed to parse select parameter (vault.create_secret()...)

failed to parse select parameter (vault.create_secret()...)

failed to parse select parameter (vault.create_secret()...)

failed to parse select parameter (vault.create_secret()...)

The docs around the Vault are very minimal.
Would love for some help here !