Decode decodes a psbt hex/base64 byte into a psbt.Packet encoding is optional, default is EncodingHex.

DecodeString decodes a psbt hex/base64 string into a psbt.Packet encoding is optional, default is EncodingHex.

EncodeToString encodes a psbt.Packet into a psbt hex/base64 string encoding is optional, default is EncodingHex.

TxFee returns satoshis fee of a transaction given the fee rate (sat/vB) and the number of inputs and outputs.

default psbt encoding is hex.