use crate::chain::chaininterface::BroadcasterInterface;
use crate::chain::ClaimId;
-use crate::sign::{ChannelSigner, EcdsaChannelSigner, SignerProvider};
+use crate::events::Event;
use crate::io_extras::sink;
-use crate::ln::PaymentPreimage;
use crate::ln::chan_utils;
use crate::ln::chan_utils::{
ANCHOR_INPUT_WITNESS_WEIGHT, HTLC_SUCCESS_INPUT_ANCHOR_WITNESS_WEIGHT,
HTLC_TIMEOUT_INPUT_ANCHOR_WITNESS_WEIGHT, ChannelTransactionParameters, HTLCOutputInCommitment
};
-use crate::events::Event;
-use crate::prelude::HashMap;
+use crate::ln::features::ChannelTypeFeatures;
+use crate::ln::PaymentPreimage;
+use crate::prelude::*;
+use crate::sign::{ChannelSigner, EcdsaChannelSigner, SignerProvider};
use crate::sync::Mutex;
use crate::util::logger::Logger;
use bitcoin::secp256k1;
use bitcoin::secp256k1::{PublicKey, Secp256k1};
use bitcoin::secp256k1::ecdsa::Signature;
-use crate::ln::features::ChannelTypeFeatures;
const EMPTY_SCRIPT_SIG_WEIGHT: u64 = 1 /* empty script_sig */ * WITNESS_SCALE_FACTOR as u64;