pub fn submit_gradient(
client_id: ClientId,
gradient: &Array1<f64>,
all_client_ids: &[ClientId],
config: &SecureAggregationConfig,
) -> Result<MaskedGradient>Expand description
End-to-end client helper: quantise gradient, add the pairwise mask,
and package the result as a MaskedGradient ready for upload.