diff --git a/api_keys.go b/api_keys.go
index 862b83d..8951cc5 100755
--- a/api_keys.go
+++ b/api_keys.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/authorization.go b/authorization.go
index 7a298b3..741a234 100755
--- a/authorization.go
+++ b/authorization.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/checkouts.go b/checkouts.go
index 9904202..2adda44 100755
--- a/checkouts.go
+++ b/checkouts.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/client.go b/client.go
index 8017b9d..e0bb7fb 100755
--- a/client.go
+++ b/client.go
@@ -1,3 +1,18 @@
+// Package sumup provides a client for using the SumUp API.
+// Usage:
+//
+//	import "github.com/sumup/sumup-go"
+//
+// Construct a new SumUp client, then use the various services on the client to
+// access different parts of the SumUp API. For example:
+//
+//	client := sumup.NewClient().WithAuth(os.Getenv("SUMUP_KEY"))
+//
+//	// get the account the client is currently authorized for
+//	account, err := client.Merchant.Get(context.Background(), sumup.GetAccountParams{})
+//
+// The client is structured around individual services that correspond to the tags
+// in SumUp documentation https://developer.sumup.com/docs/api/sum-up-rest-api/.
 package sumup
 
 import (
@@ -23,6 +38,7 @@ type service struct {
 	client *Client
 }
 
+// Client manages communication with the SumUp APIs.
 type Client struct {
 	// service is the shared service struct re-used for all services.
 	svc service
@@ -48,7 +64,7 @@ type Client struct {
 	Transactions  *TransactionsService
 }
 
-// NewClient creates new SumUp API client.
+// NewClient creates new SumUp API [Client].
 // To use APIs that require authentication use [Client.WithAuth].
 func NewClient() *Client {
 	c := &Client{
@@ -60,7 +76,7 @@ func NewClient() *Client {
 	return c
 }
 
-// WithAuth returns a copy of the client configured with the provided Authorization key.
+// WithAuth returns a copy of the [Client] configured with the provided Authorization key.
 func (c *Client) WithAuth(key string) *Client {
 	clone := Client{
 		client:    c.client,
@@ -72,7 +88,7 @@ func (c *Client) WithAuth(key string) *Client {
 	return &clone
 }
 
-// WithClient returns a copy of the client configured with the provided http client.
+// WithClient returns a copy of the [Client] configured with the provided http client.
 func (c *Client) WithHTTPClient(client *http.Client) *Client {
 	clone := Client{
 		client:    client,
diff --git a/customers.go b/customers.go
index 90b8038..52f1799 100755
--- a/customers.go
+++ b/customers.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/doc.go b/doc.go
deleted file mode 100644
index b493dd5..0000000
--- a/doc.go
+++ /dev/null
@@ -1,18 +0,0 @@
-// Package sumup provides a client for using the SumUp API.
-/*
-Usage:
-
-	import "github.com/sumup/sumup-go"
-
-Construct a new SumUp client, then use the various services on the client to
-access different parts of the SumUp API. For example:
-
-	client := sumup.NewClient().WithAuth(os.Getenv("SUMUP_KEY"))
-
-	// get the account the client is currently authorized for
-	account, err := client.Merchant.Get(context.Background(), sumup.GetAccountParams{})
-
-The client is structured around individual services that correspond to the tags
-in SumUp documentation https://developer.sumup.com/docs/api/sum-up-rest-api/.
-*/
-package sumup
diff --git a/merchant.go b/merchant.go
index 1ff5d01..c2c542b 100755
--- a/merchant.go
+++ b/merchant.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/models.go b/models.go
index 2707200..43f65c9 100755
--- a/models.go
+++ b/models.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/payouts.go b/payouts.go
index da115d2..5bb1260 100755
--- a/payouts.go
+++ b/payouts.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/receipts.go b/receipts.go
index eac1df9..4d599b8 100755
--- a/receipts.go
+++ b/receipts.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/subaccounts.go b/subaccounts.go
index 3116a47..76264da 100755
--- a/subaccounts.go
+++ b/subaccounts.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (
diff --git a/transactions.go b/transactions.go
index a116d6d..96bd22f 100755
--- a/transactions.go
+++ b/transactions.go
@@ -1,4 +1,5 @@
 // Code generated by `gocodegen`. DO NOT EDIT.
+
 package sumup
 
 import (