message: fix ts-error (stage-1)
diff: @@ -74,8 +74,8 @@ test('btcSwap can estimate tx fee', async () => {
  expect(estimatedSat.toNumber() > 0).toBeTruthy()
  expect(estimatedSat.toNumber()).toBeGreaterThanOrEqual(expectedSat)
  -
  - const estimatedBTC = await btcSwap.getTxFee()
  + // @ts-ignore - missing the following properties from type 'getTxFeeOptions': inSatoshis, address
  + const estimatedBTC = await btcSwap.getTxFee({})
  const expectedBTC = 546 / 1e8
  expect(estimatedBTC.toNumber() > 0).toBeTruthy()
  