in uber-core/src/main/java/com/uber/sdk/core/auth/AccessToken.java [50:61]
public AccessToken(
long expiresIn,
Collection<Scope> scopes,
String token,
String refreshToken,
String tokenType) {
expires_in = expiresIn;
this.scope = new HashSet<>(scopes);
access_token = token;
refresh_token = refreshToken;
token_type = tokenType;
}