diff --git a/src/data_model/rc.rs b/src/data_model/rc.rs
index 26e4e19..4dfdd3e 100644
--- a/src/data_model/rc.rs
+++ b/src/data_model/rc.rs
@@ -3,7 +3,6 @@ use der_parser::asn1_rs::Tag;
 use der_parser::num_bigint::BigUint;
 use url::Url;
 use time::OffsetDateTime;
-use url::quirks::password;
 use x509_parser::x509::AlgorithmIdentifier;
 use x509_parser::prelude::{Validity, KeyUsage, X509Certificate, FromDer,
                            X509Version, X509Extension, ParsedExtension,
@@ -193,7 +192,7 @@ fn parse_and_validate_cert(x509_rc: X509Certificate) -> Result<ResourceCert, Res
 
     // TODO
     Ok(ResourceCert {
-        
+
     })
 
 
@@ -363,7 +362,7 @@ pub fn parse_and_validate_extensions(
 
     // TODO:
     Ok(RcExtension {
-        
+
     }
 }
 
@@ -636,5 +635,5 @@ fn parse_ip_address_blocks(ext: &X509Extension<'_>) -> Result<IPAddrBlocks, Reso
 fn parse_as_identifiers(ext: &X509Extension<'_>) -> Result<Vec<AsIdentifier>, ResourceCertError> {
     let as_identifiers_der = ext.value;
     // TODO: 解析 ASIdentifiers DER
-    
+
 }
\ No newline at end of file