You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: submit_obs_test.go
    path of file: ./repos/wormhole/node/pkg/accountant
    
    the code of the file until where you have to start completion: package accountant

import (
	// "encoding/hex"
	"encoding/json"
	"testing"

	"github.com/wormhole-foundation/wormhole/sdk/vaa"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestParseObservationResponseDataKey(t *testing.T) {
	dataJson := []byte("{\"emitter_chain\":2,\"emitter_address\":\"0000000000000000000000000290fb167208af455bb137780163b7b7a9a10c16\",\"sequence\":1673978163}")

	var key TransferKey
	err := json.Unmarshal(dataJson, &key)
	require
    
func TestParseObservationResponseData(t *testing.T) {
	responsesJson := []byte("[{\"key\":{\"emitter_chain\":2,\"emitter_address\":\"0000000000000000000000000290fb167208af455bb137780163b7b7a9a10c16\",\"sequence\":1674061268},\"status\":{\"type\":\"committed\"}},{\"key\":{\"emitter_chain\":2,\"emitter_address\":\"0000000000000000000000000290fb167208af455bb137780163b7b7a9a10c16\",\"sequence\":1674061267},\"status\":{\"type\":\"error\",\"data\":\"digest mismatch for processed message\"}}]")
	var responses ObservationResponses
	err := json.Unmarshal(responsesJson, &responses)
	require.NoError(t, err)
	require.Equal(t, 2, len(responses))

	expectedEmitterAddress, err := vaa.StringToAddress("0000000000000000000000000290fb167208af455bb137780163b7b7a9a10c16")
	require.NoError(t, err)

	expectedResult0 := ObservationResponse{
		Key: TransferKey{
			EmitterChain:   uint16(vaa.ChainIDEthereum),
			EmitterAddress: expectedEmitterAddress,
			Sequence:       1674061268,
		},
		Status: ObservationResponseStatus{
			Type: "committed",
		},
	}

	expectedResult1 := ObservationResponse{
		Key: TransferKey{
			EmitterChain:   uint16(vaa.ChainIDEthereum),
			EmitterAddress: expectedEmitterAddress,
			Sequence:       1674061267,
		},
		Status: ObservationResponseStatus{
			Type: "error",
			Data: "digest mismatch for processed message",
		},
	}

	assert.Equal(t, expectedResult0, responses[0])
	assert.Equal(t, expectedResult1, responses[1])
}