diff --git a/script/build.sh b/script/build.sh
index 3e79f5b7..78df0ba6 100755
--- a/script/build.sh
+++ b/script/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 set -e
 
 ZMQ_VERSION=${ZMQ_VERSION:-"4.3.4"}
diff --git a/script/ci/alpine-chroot-install.sh b/script/ci/alpine-chroot-install.sh
index ab444010..5d7176c9 100755
--- a/script/ci/alpine-chroot-install.sh
+++ b/script/ci/alpine-chroot-install.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # https://github.com/alpinelinux/alpine-chroot-install/blob/master/alpine-chroot-install
 # vim: set ts=4:
 #---help---
@@ -389,4 +389,4 @@ cat >&2 <<-EOF
 	---
 	Alpine installation is complete
 	Run $CHROOT_DIR/enter-chroot [-u <user>] [command] to enter the chroot.
-EOF
\ No newline at end of file
+EOF
diff --git a/script/lint.sh b/script/lint.sh
index dc9d967d..bfa0008a 100644
--- a/script/lint.sh
+++ b/script/lint.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 if [ -z "$CI" ]; then
   if command -v clang-format >/dev/null; then
     echo "Clang-format..."
diff --git a/src/draft.ts b/src/draft.ts
index 4cb8f97a..cd159b20 100644
--- a/src/draft.ts
+++ b/src/draft.ts
@@ -1,8 +1,7 @@
-import {methods, Socket, SocketType} from "./native"
+import {Socket, SocketType} from "./native"
 
 import {Message, MessageLike, Readable, SocketOptions, Writable} from "."
-
-const {send, receive, join, leave} = methods
+import {allowMethods} from "./util"
 
 export class Server extends Socket {
   constructor(options?: SocketOptions<Server>) {
@@ -17,7 +16,7 @@ interface ServerRoutingOptions {
 export interface Server
   extends Readable<[Message, ServerRoutingOptions]>,
     Writable<MessageLike, [ServerRoutingOptions]> {}
-Object.assign(Server.prototype, {send, receive})
+allowMethods(Server.prototype, ["send", "receive"])
 
 export class Client extends Socket {
   constructor(options?: SocketOptions<Client>) {
@@ -26,7 +25,7 @@ export class Client extends Socket {
 }
 
 export interface Client extends Readable<[Message]>, Writable<MessageLike> {}
-Object.assign(Client.prototype, {send, receive})
+allowMethods(Client.prototype, ["send", "receive"])
 
 export class Radio extends Socket {
   constructor(options?: SocketOptions<Radio>) {
@@ -40,7 +39,10 @@ interface RadioGroupOptions {
 
 // eslint-disable-next-line @typescript-eslint/no-empty-interface
 export interface Radio extends Writable<MessageLike, [RadioGroupOptions]> {}
-Object.assign(Radio.prototype, {send})
+allowMethods(Radio.prototype, ["send"])
+
+const join = (Socket.prototype as any).join
+const leave = (Socket.prototype as any).leave
 
 export class Dish extends Socket {
   constructor(options?: SocketOptions<Dish>) {
@@ -52,13 +54,13 @@ export class Dish extends Socket {
 
   join(...values: Array<Buffer | string>): void {
     for (const value of values) {
-      join.call(this, value)
+      join(value)
     }
   }
 
   leave(...values: Array<Buffer | string>): void {
     for (const value of values) {
-      leave.call(this, value)
+      leave(value)
     }
   }
 }
@@ -69,7 +71,7 @@ interface DishGroupOptions {
 
 // eslint-disable-next-line @typescript-eslint/no-empty-interface
 export interface Dish extends Readable<[Message, DishGroupOptions]> {}
-Object.assign(Dish.prototype, {receive})
+allowMethods(Dish.prototype, ["receive", "join", "leave"])
 
 export class Gather extends Socket {
   constructor(options?: SocketOptions<Gather>) {
@@ -81,7 +83,7 @@ export interface Gather extends Readable<[Message]> {
   conflate: boolean
 }
 
-Object.assign(Gather.prototype, {receive})
+allowMethods(Gather.prototype, ["receive"])
 
 export class Scatter extends Socket {
   constructor(options?: SocketOptions<Scatter>) {
@@ -93,7 +95,7 @@ export interface Scatter extends Writable<MessageLike> {
   conflate: boolean
 }
 
-Object.assign(Scatter.prototype, {send})
+allowMethods(Scatter.prototype, ["send"])
 
 export class Datagram extends Socket {
   constructor(options?: SocketOptions<Datagram>) {
@@ -104,4 +106,4 @@ export class Datagram extends Socket {
 export interface Datagram
   extends Readable<[Message, Message]>,
     Writable<[MessageLike, MessageLike]> {}
-Object.assign(Datagram.prototype, {send, receive})
+allowMethods(Datagram.prototype, ["send", "receive"])
diff --git a/src/index.ts b/src/index.ts
index 6a9483e9..44a063ba 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,5 @@
+import {allowMethods} from "./util"
+
 export {
   capability,
   context,
@@ -14,7 +16,6 @@ export {
 
 import {
   capability,
-  methods,
   Context,
   EventOfType,
   EventType,
@@ -29,8 +30,6 @@ import {
 import * as draft from "./draft"
 import {FullError} from "./errors"
 
-const {send, receive} = methods
-
 /**
  * A type representing the messages that are returned inside promises by
  * {@link Readable.receive}().
@@ -976,7 +975,7 @@ export class Pair extends Socket {
 }
 
 export interface Pair extends Writable, Readable {}
-Object.assign(Pair.prototype, {send, receive})
+allowMethods(Pair.prototype, ["send", "receive"])
 
 /**
  * A {@link Publisher} socket is used to distribute data to {@link Subscriber}s.
@@ -1028,7 +1027,7 @@ export class Publisher extends Socket {
 
 // eslint-disable-next-line @typescript-eslint/no-empty-interface
 export interface Publisher extends Writable {}
-Object.assign(Publisher.prototype, {send})
+allowMethods(Publisher.prototype, ["send"])
 
 /**
  * A {@link Subscriber} socket is used to subscribe to data distributed by a
@@ -1128,7 +1127,7 @@ export class Subscriber extends Socket {
 
 // eslint-disable-next-line @typescript-eslint/no-empty-interface
 export interface Subscriber extends Readable {}
-Object.assign(Subscriber.prototype, {receive})
+allowMethods(Subscriber.prototype, ["receive"])
 
 /**
  * A {@link Request} socket acts as a client to send requests to and receive
@@ -1198,7 +1197,7 @@ export class Request extends Socket {
 }
 
 export interface Request extends Readable, Writable {}
-Object.assign(Request.prototype, {send, receive})
+allowMethods(Request.prototype, ["send", "receive"])
 
 /**
  * A {@link Reply} socket can act as a server which receives requests from and
@@ -1223,7 +1222,7 @@ export class Reply extends Socket {
 }
 
 export interface Reply extends Readable, Writable {}
-Object.assign(Reply.prototype, {send, receive})
+allowMethods(Reply.prototype, ["send", "receive"])
 
 /**
  * A {@link Dealer} socket can be used to extend request/reply sockets. Each
@@ -1280,7 +1279,7 @@ export class Dealer extends Socket {
 }
 
 export interface Dealer extends Readable, Writable {}
-Object.assign(Dealer.prototype, {send, receive})
+allowMethods(Dealer.prototype, ["send", "receive"])
 
 /**
  * A {@link Router} can be used to extend request/reply sockets. When receiving
@@ -1380,7 +1379,7 @@ interface RouterConnectOptions {
 }
 
 export interface Router extends Readable, Writable {}
-Object.assign(Router.prototype, {send, receive})
+allowMethods(Router.prototype, ["send", "receive"])
 
 /**
  * A {@link Pull} socket is used by a pipeline node to receive messages from
@@ -1405,7 +1404,7 @@ export interface Pull extends Readable {
   conflate: boolean
 }
 
-Object.assign(Pull.prototype, {receive})
+allowMethods(Pull.prototype, ["receive"])
 
 /**
  * A {@link Push} socket is used by a pipeline node to send messages to
@@ -1436,7 +1435,7 @@ export interface Push extends Writable {
   conflate: boolean
 }
 
-Object.assign(Push.prototype, {send})
+allowMethods(Push.prototype, ["send"])
 
 /**
  * Same as {@link Publisher}, except that you can receive subscriptions from the
@@ -1516,7 +1515,7 @@ export class XPublisher extends Socket {
 }
 
 export interface XPublisher extends Readable, Writable {}
-Object.assign(XPublisher.prototype, {send, receive})
+allowMethods(XPublisher.prototype, ["send", "receive"])
 
 /**
  * Same as {@link Subscriber}, except that you subscribe by sending subscription
@@ -1532,7 +1531,7 @@ export class XSubscriber extends Socket {
 }
 
 export interface XSubscriber extends Readable, Writable {}
-Object.assign(XSubscriber.prototype, {send, receive})
+allowMethods(XSubscriber.prototype, ["send", "receive"])
 
 /**
  * A {@link Stream} is used to send and receive TCP data from a non-ØMQ peer
@@ -1590,7 +1589,7 @@ interface StreamConnectOptions {
 export interface Stream
   extends Readable<[Message, Message]>,
     Writable<[MessageLike, MessageLike]> {}
-Object.assign(Stream.prototype, {send, receive})
+allowMethods(Stream.prototype, ["send", "receive"])
 
 /* Meta functionality to define new socket/context options. */
 const enum Type {
diff --git a/src/native.ts b/src/native.ts
index aa897c51..5151b049 100644
--- a/src/native.ts
+++ b/src/native.ts
@@ -4,28 +4,6 @@
 const path = require("path")
 module.exports = require("node-gyp-build")(path.join(__dirname, ".."))
 
-/* We are removing public methods from the Socket prototype that do not apply
-   to all socket types. We will re-assign them to the prototypes of the
-   relevant sockets later. For send/receive it is important that they are not
-   wrapped in JS methods later, to ensure best performance. Any changes to
-   their signatures should be handled in C++ exclusively. */
-interface SpecializedMethods {
-  send: Function
-  receive: Function
-  join: Function
-  leave: Function
-}
-
-const sack: Partial<SpecializedMethods> = {}
-const target: SpecializedMethods = module.exports.Socket.prototype
-for (const key of ["send", "receive", "join", "leave"] as const) {
-  sack[key] = target[key]
-  delete target[key]
-}
-
-module.exports.methods = sack
-export declare const methods: SpecializedMethods
-
 /**
  * The version of the ØMQ library the bindings were built with. Formatted as
  * `(major).(minor).(patch)`. For example: `"4.3.2"`.
diff --git a/src/util.ts b/src/util.ts
new file mode 100644
index 00000000..2b9d8f6e
--- /dev/null
+++ b/src/util.ts
@@ -0,0 +1,17 @@
+// A union type of possible socket method names to leave available from the native Socket.prototype
+type SocketMethods = "send" | "receive" | "join" | "leave"
+
+/**
+ * This function is used to remove the given methods from the given socket_prototype
+ * to make the relevant socket types have only their relevant methods.
+ * @param socketPrototype
+ * @param methods
+ */
+export function allowMethods(socketPrototype: any, methods: SocketMethods[]) {
+  const toDelete = ["send", "receive", "join", "leave"] as SocketMethods[]
+  for (const method of toDelete) {
+    if (methods.includes(method)) {
+      delete socketPrototype[method]
+    }
+  }
+}