fix based on comments

driver/txlist_fetcher/blob.go

@@ -11,7 +11,7 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 
 	"github.com/taikoxyz/taiko-client/bindings"
-	"github.com/taikoxyz/taiko-client/pkg/customerr"
+	"github.com/taikoxyz/taiko-client/pkg"
 	"github.com/taikoxyz/taiko-client/pkg/rpc"
 )
 
@@ -33,7 +33,7 @@ func (d *BlobFetcher) Fetch(
 	meta *bindings.TaikoDataBlockMetadata,
 ) ([]byte, error) {
 	if !meta.BlobUsed {
-		return nil, customerr.ErrBlobUsed
+		return nil, pkg.ErrBlobUsed
 	}
 
 	// Fetch the L1 block sidecars.
@@ -63,5 +63,5 @@ func (d *BlobFetcher) Fetch(
 		}
 	}
 
-	return nil, customerr.ErrSidecarNotFound
+	return nil, pkg.ErrSidecarNotFound
 }

driver/txlist_fetcher/calldata.go

@@ -6,7 +6,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/taikoxyz/taiko-client/bindings"
 	"github.com/taikoxyz/taiko-client/bindings/encoding"
-	"github.com/taikoxyz/taiko-client/pkg/customerr"
+	"github.com/taikoxyz/taiko-client/pkg"
 )
 
 // CalldataFetcher is responsible for fetching the txList bytes from the transaction's calldata.
@@ -19,7 +19,7 @@ func (d *CalldataFetcher) Fetch(
 	meta *bindings.TaikoDataBlockMetadata,
 ) ([]byte, error) {
 	if meta.BlobUsed {
-		return nil, customerr.ErrBlobUsed
+		return nil, pkg.ErrBlobUsed
 	}
 
 	return encoding.UnpackTxListBytes(tx.Data())

pkg/customerr/custom_error.go → pkg/error.go

@@ -1,4 +1,4 @@
-package customerr
+package pkg
 
 import (
 	"errors"

pkg/rpc/blob_datasource.go

@@ -10,7 +10,7 @@ import (
 	"github.com/go-resty/resty/v2"
 	"github.com/prysmaticlabs/prysm/v4/beacon-chain/rpc/eth/blob"
 	"github.com/taikoxyz/taiko-client/bindings"
-	"github.com/taikoxyz/taiko-client/pkg/customerr"
+	"github.com/taikoxyz/taiko-client/pkg"
 )
 
 type BlobDataSource struct {
@@ -47,15 +47,15 @@ func (ds *BlobDataSource) GetBlobs(
 	meta *bindings.TaikoDataBlockMetadata,
 ) ([]*blob.Sidecar, error) {
 	if !meta.BlobUsed {
-		return nil, customerr.ErrBlobUnused
+		return nil, pkg.ErrBlobUnused
 	}
 
 	var (
 		sidecars []*blob.Sidecar
 		err      error
 	)
 	if ds.client.L1Beacon == nil {
-		sidecars, err = nil, customerr.ErrBeaconNotFound
+		sidecars, err = nil, pkg.ErrBeaconNotFound
 	} else {
 		sidecars, err = ds.client.L1Beacon.GetBlobs(ctx, meta.Timestamp)
 	}