walletprocesspsbt "psbt" ( sign "sighashtype" bip32derivs )

Update a PSBT with input information from our wallet and then sign inputs that we can sign for.

1. psbt           (string, required) The transaction base64 string
2. sign           (boolean, optional, default=true) Also sign the transaction when updating
3. sighashtype    (string, optional, default=ALL|FORKID) The signature hash type to sign with if not specified by the PSBT. Must be one of
4. bip32derivs    (boolean, optional, default=true) Includes the BIP 32 derivation paths for public keys if we know them

{                             (json object)
  "psbt" : "str",             (string) The base64-encoded partially signed transaction
  "complete" : true|false,    (boolean) If the transaction has a complete set of signatures

> bitcoin-cli walletprocesspsbt "psbt"