Returns the data points for the specified Amazon Lightsail instance metric, given an instance name.
/// Lightsail throws this exception when the user cannot be authenticated or uses invalid
/// credentials to access a resource.
///
/// Lightsail throws this exception when an account is still in the setup in progress
/// state.
///
/// Lightsail throws this exception when user input does not conform to the validation
/// rules of an input field.
///
/// Lightsail throws this exception when it cannot find a resource.
///
/// Lightsail throws this exception when an operation fails to execute.
///
/// A general service exception.
///
/// Lightsail throws this exception when the user has not been authenticated.
///
