entering custom type values in a config.json file

I'm trying to use this forum software written in Go that has a config file that requires the values you see in main.go below. I tried to use an empty string "" for the oauth credentials to play around on my local machine but I got an error

json. json: cannot unmarshal string into Go value of type oauth.Credentials

So, even if I were to deploy it on a server, I thought I would have had to enter the credentials as a string, which would trigger the error there as well.

Assuming my api key and secret were like this

key= X482xYAFG1I2RKBYR
secret = 4929390593pqI4wNMljlj4N71oyOdlWCzyNKhv4BAd4QXLvW2LF

Taking into consideration the requirements from main.go below, how would you enter the credentials in a config.json file like this

{
	"TwitterOAuthCredentials":,
	"CookieAuthKeyHexStr":"2ded82bb63514dbd6a0af42a25df235c",
	"CookieEncrKeyHexStr":"4add93d1d6bb3489c9b3ab5448704068",
	"AnalyticsCode":"",
	"AwsAccess":"",
	"AwsSecret":"",
	"S3BackupBucket":"",
	"S3BackupDir": ""
}

config requirements from main.go

config = struct {
	TwitterOAuthCredentials *oauth.Credentials
	CookieAuthKeyHexStr     *string
	CookieEncrKeyHexStr     *string
	AnalyticsCode           *string
	AwsAccess               *string
	AwsSecret               *string
	S3BackupBucket          *string
	S3BackupDir             *string
}{
	&oauthClient.Credentials,
	nil, nil,
	nil,
	nil, nil,
	nil, nil,
}

If you don't want to set it, leave it out entirely, and it will get set to the default value.

Otherwise, enter the json representation of an oauth.Credentials, which is just a Token and a Secret string:

type Credentials struct {
	Token  string // Also known as consumer key or access token.
	Secret string // Also known as consumer secret or access token secret.
}

In your config, the credentials would look like:

"TwitterOAuthCredentials": {
    "Token": "oauthtoken",
    "Secret": "oauthsecret"
},