Use this function to specify which credentials to use to connect to Alpaca.
alpaca_connect(mode, api_key, api_secret)
string. 'paper', 'live' or 'data'
string. corresponding alpaca api key
string. corresponding alpaca api secret key
a connection object that you will pass to other rblncr functions
if (FALSE) {
alpaca_connect(mode = "paper",
api_key = "REDACTED",
api_secret = "REDACTED")
}