diff --git a/examples/parse_command.rs b/examples/parse_command.rs
index 0bf1fd7..91e7e77 100644
--- a/examples/parse_command.rs
+++ b/examples/parse_command.rs
@@ -1,6 +1,7 @@
-use smtp_codec::parse::command::command;
 use std::io::Write;
 
+use smtp_codec::parse::command::command;
+
 fn main() -> std::io::Result<()> {
     let mut args = std::env::args();
 
diff --git a/src/parse/address.rs b/src/parse/address.rs
index 0a7a4da..a548612 100644
--- a/src/parse/address.rs
+++ b/src/parse/address.rs
@@ -1,6 +1,5 @@
 //! 4.1.3.  Address Literals (RFC 5321)
 
-use crate::parse::Ldh_str;
 use abnf_core::streaming::is_DIGIT;
 use nom::{
     branch::alt,
@@ -12,6 +11,8 @@ use nom::{
     IResult,
 };
 
+use crate::parse::Ldh_str;
+
 /// address-literal = "[" (
 ///                       IPv4-address-literal /
 ///                       IPv6-address-literal /
diff --git a/src/parse/command.rs b/src/parse/command.rs
index 3b64600..f38ad8f 100644
--- a/src/parse/command.rs
+++ b/src/parse/command.rs
@@ -1,7 +1,3 @@
-use crate::{
-    parse::{address::address_literal, base64, Atom, Domain, Quoted_string, String},
-    types::{Command, DomainOrAddress, Parameter},
-};
 use abnf_core::streaming::{is_ALPHA, is_DIGIT, CRLF, SP};
 use nom::{
     branch::alt,
@@ -12,6 +8,11 @@ use nom::{
     IResult,
 };
 
+use crate::{
+    parse::{address::address_literal, base64, Atom, Domain, Quoted_string, String},
+    types::{Command, DomainOrAddress, Parameter},
+};
+
 pub fn command(input: &[u8]) -> IResult<&[u8], Command> {
     alt((
         helo, ehlo, mail, rcpt, data, rset, vrfy, expn, help, noop, quit,
diff --git a/src/parse/imf.rs b/src/parse/imf.rs
index 7c810e6..9025677 100644
--- a/src/parse/imf.rs
+++ b/src/parse/imf.rs
@@ -4,7 +4,6 @@
 
 /// 3.2.1.  Quoted characters
 pub mod quoted_characters {
-    use super::obsolete::obs_qp;
     use abnf_core::streaming::{is_VCHAR, WSP};
     use nom::{
         branch::alt,
@@ -14,6 +13,8 @@ pub mod quoted_characters {
         IResult,
     };
 
+    use super::obsolete::obs_qp;
+
     /// quoted-pair = ("\" (VCHAR / WSP)) / obs-qp
     pub fn quoted_pair(input: &[u8]) -> IResult<&[u8], &[u8]> {
         let parser = alt((
@@ -57,7 +58,6 @@ pub mod folding_ws_and_comment {
 
 /// 3.2.3.  Atom
 pub mod atom {
-    use super::folding_ws_and_comment::CFWS;
     use abnf_core::streaming::{is_ALPHA, is_DIGIT};
     use nom::{
         bytes::streaming::{tag, take_while1},
@@ -67,6 +67,8 @@ pub mod atom {
         IResult,
     };
 
+    use super::folding_ws_and_comment::CFWS;
+
     /// Printable US-ASCII characters not including specials.
     /// Used for atoms.
     ///
@@ -131,11 +133,6 @@ pub mod atom {
 
 /// 3.2.4.  Quoted Strings
 pub mod quoted_strings {
-    use super::{
-        folding_ws_and_comment::{CFWS, FWS},
-        obsolete::is_obs_qtext,
-        quoted_characters::quoted_pair,
-    };
     use abnf_core::streaming::DQUOTE;
     use nom::{
         branch::alt,
@@ -146,6 +143,12 @@ pub mod quoted_strings {
         IResult,
     };
 
+    use super::{
+        folding_ws_and_comment::{CFWS, FWS},
+        obsolete::is_obs_qtext,
+        quoted_characters::quoted_pair,
+    };
+
     /// Printable US-ASCII characters not including "\" or the quote character.
     ///
     /// qtext = %d33 / %d35-91 / %d93-126 / obs-qtext
@@ -185,9 +188,10 @@ pub mod quoted_strings {
 
 /// 3.2.5.  Miscellaneous Tokens
 pub mod miscellaneous {
-    use super::{atom::atom, quoted_strings::quoted_string};
     use nom::{branch::alt, IResult};
 
+    use super::{atom::atom, quoted_strings::quoted_string};
+
     /// word = atom / quoted-string
     pub fn word(input: &[u8]) -> IResult<&[u8], &[u8]> {
         alt((atom, quoted_string))(input)
@@ -202,7 +206,6 @@ pub mod miscellaneous {
 
 /// 3.3.  Date and Time Specification
 pub mod datetime {
-    use super::folding_ws_and_comment::{CFWS, FWS};
     use abnf_core::streaming::is_DIGIT;
     use nom::{
         branch::alt,
@@ -212,6 +215,8 @@ pub mod datetime {
         IResult,
     };
 
+    use super::folding_ws_and_comment::{CFWS, FWS};
+
     // date-time = [ day-of-week "," ] date time [CFWS]
     pub fn date_time(input: &[u8]) -> IResult<&[u8], &[u8]> {
         let parser = tuple((opt(tuple((day_of_week, tag(b",")))), date, time, opt(CFWS)));
@@ -365,12 +370,6 @@ pub mod datetime {
 
 /// 3.4.1.  Addr-Spec Specification
 pub mod addr_spec {
-    use super::{
-        atom::dot_atom,
-        folding_ws_and_comment::{CFWS, FWS},
-        obsolete::{obs_domain, obs_dtext, obs_local_part},
-        quoted_strings::quoted_string,
-    };
     use nom::{
         branch::alt,
         bytes::streaming::{tag, take_while_m_n},
@@ -380,6 +379,13 @@ pub mod addr_spec {
         IResult,
     };
 
+    use super::{
+        atom::dot_atom,
+        folding_ws_and_comment::{CFWS, FWS},
+        obsolete::{obs_domain, obs_dtext, obs_local_part},
+        quoted_strings::quoted_string,
+    };
+
     // addr-spec = local-part "@" domain
 
     /// local-part = dot-atom / quoted-string / obs-local-part
@@ -442,12 +448,6 @@ pub mod addr_spec {
 
 /// 3.6.4.  Identification Fields
 pub mod identification {
-    use super::{
-        addr_spec::dtext,
-        atom::dot_atom_text,
-        folding_ws_and_comment::CFWS,
-        obsolete::{obs_id_left, obs_id_right},
-    };
     use nom::{
         branch::alt,
         bytes::streaming::tag,
@@ -457,6 +457,13 @@ pub mod identification {
         IResult,
     };
 
+    use super::{
+        addr_spec::dtext,
+        atom::dot_atom_text,
+        folding_ws_and_comment::CFWS,
+        obsolete::{obs_id_left, obs_id_right},
+    };
+
     // message-id = "Message-ID:" msg-id CRLF
     // ...
 
@@ -513,12 +520,6 @@ pub mod identification {
 
 /// 4.1.  Miscellaneous Obsolete Tokens
 pub mod obsolete {
-    use super::{
-        addr_spec::{domain, local_part},
-        atom::atom,
-        miscellaneous::word,
-        quoted_characters::quoted_pair,
-    };
     use abnf_core::streaming::{CR, LF};
     use nom::{
         branch::alt,
@@ -529,6 +530,13 @@ pub mod obsolete {
         IResult,
     };
 
+    use super::{
+        addr_spec::{domain, local_part},
+        atom::atom,
+        miscellaneous::word,
+        quoted_characters::quoted_pair,
+    };
+
     /// US-ASCII control characters that do not include the carriage
     /// return, line feed, and white space characters
     ///
diff --git a/src/parse/mod.rs b/src/parse/mod.rs
index d58fa6c..81f04c6 100644
--- a/src/parse/mod.rs
+++ b/src/parse/mod.rs
@@ -1,6 +1,7 @@
 #![allow(non_snake_case)]
 
-use crate::{parse::imf::atom::is_atext, types::AtomOrQuoted, utils::unescape_quoted};
+use std::{borrow::Cow, str::from_utf8};
+
 use abnf_core::streaming::{is_ALPHA, is_DIGIT, DQUOTE};
 use nom::{
     branch::alt,
@@ -11,7 +12,8 @@ use nom::{
     sequence::{delimited, tuple},
     IResult,
 };
-use std::{borrow::Cow, str::from_utf8};
+
+use crate::{parse::imf::atom::is_atext, types::AtomOrQuoted, utils::unescape_quoted};
 
 pub mod address;
 pub mod command;
diff --git a/src/parse/response.rs b/src/parse/response.rs
index bbf4570..115dc87 100644
--- a/src/parse/response.rs
+++ b/src/parse/response.rs
@@ -1,7 +1,3 @@
-use crate::{
-    parse::{address::address_literal, number, Domain},
-    types::{AuthMechanism, Capability, Response},
-};
 use abnf_core::streaming::{is_ALPHA, is_DIGIT, CRLF, SP};
 use nom::{
     branch::alt,
@@ -12,6 +8,11 @@ use nom::{
     IResult,
 };
 
+use crate::{
+    parse::{address::address_literal, number, Domain},
+    types::{AuthMechanism, Capability, Response},
+};
+
 /// Greeting = ( "220 " (Domain / address-literal) [ SP textstring ] CRLF ) /
 ///            ( "220-" (Domain / address-literal) [ SP textstring ] CRLF
 ///           *( "220-" [ textstring ] CRLF )
diff --git a/src/parse/trace.rs b/src/parse/trace.rs
index 9a45241..76e18fa 100644
--- a/src/parse/trace.rs
+++ b/src/parse/trace.rs
@@ -1,13 +1,3 @@
-use crate::parse::{
-    address::address_literal,
-    command::{Mailbox, Path, Reverse_path},
-    imf::{
-        datetime::date_time,
-        folding_ws_and_comment::{CFWS, FWS},
-        identification::msg_id,
-    },
-    Atom, Domain, String,
-};
 /// 4.4.  Trace Information (RFC 5321)
 use abnf_core::streaming::CRLF;
 use nom::{
@@ -19,6 +9,17 @@ use nom::{
     IResult,
 };
 
+use crate::parse::{
+    address::address_literal,
+    command::{Mailbox, Path, Reverse_path},
+    imf::{
+        datetime::date_time,
+        folding_ws_and_comment::{CFWS, FWS},
+        identification::msg_id,
+    },
+    Atom, Domain, String,
+};
+
 /// Return-path-line = "Return-Path:" FWS Reverse-path <CRLF>
 pub fn Return_path_line(input: &[u8]) -> IResult<&[u8], &[u8]> {
     let parser = tuple((tag_no_case(b"Return-Path:"), FWS, Reverse_path, CRLF));
diff --git a/src/types.rs b/src/types.rs
index 02ba0b4..0fea12c 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -1,7 +1,9 @@
-use crate::utils::escape_quoted;
+use std::io::Write;
+
 #[cfg(feature = "serdex")]
 use serde::{Deserialize, Serialize};
-use std::io::Write;
+
+use crate::utils::escape_quoted;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Command {