Function sign_transaction

Sign a P2PKH bitcoin transaction. IMPORTANT: This method is for demonstration purposes only and it only supports signing transactions if: 1. All the inputs are referencing outpoints that are owned by `own_address`. 2. `own_address` is a P2PKH address.

(
    ctx: &BitcoinContext,
    own_public_key: &PublicKey,
    own_address: &Address,
    mut transaction: Transaction,
    derivation_path: Vec<Vec<u8>>,
    signer: SignFun,
)