Update customization docs

Author: uriyyo

docs/tutorials_advanced/customization.md

@@ -20,7 +20,7 @@ new class objects and `mypy` does not support such ways.
 First, let's import all necessary components:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:1-9]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:1-12]!}
 ```
 
 Now we can customize our page.
@@ -30,7 +30,7 @@ Now we can customize our page.
 If you want to change default name of page class, you should use `UseName` customizer:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:11-14]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:14-17]!}
 ```
 
 1. Now your class will be names 'IntPage' instead of 'CustomizedPage'.
@@ -47,7 +47,7 @@ By default, cursor-based page don't include total count of items, and offset-bas
 If you want to change this behavior, you should use `UseIncludeTotal` customizer:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:16-19]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:19-22]!}
 ```
 
 1. Now when you will paginate using `PageNoTotal` class, it will not include total count of items.
@@ -57,7 +57,7 @@ If you want to change this behavior, you should use `UseIncludeTotal` customizer
 If you want to change default values of pagination parameters, you should use `UseParamsFields` customizer:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:21-24]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:24-27]!}
 ```
 
 1. Now when `size` parameter is not provided, it will be equal to 500.
@@ -68,18 +68,51 @@ If you want to change default values of pagination parameters, you should use `U
 If you want to change type of pagination parameters, you should use `UseParams` customizer:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:26-29]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:29-32]!}
 ```
 
 1. Now all pagination parameters will be optional.
 
 
+### Change fields names
+
+If you want use another name of field rather than default, you should use `UseFieldsAliases` customizer:
+
+```py
+{!../docs_src/tutorials_advanced/customization.py [ln:43-46]!}
+```
+
+1. Now `total` field will be serialized as `count`.
+
+
+### Exclude fields
+
+If you want to exclude some fields from serialization, you should use `UseExcludedFields` customizer:
+
+```py
+{!../docs_src/tutorials_advanced/customization.py [ln:48-51]!}
+```
+
+1. Now `total` field will not be serialized.
+
+
+### Change pydantic model config
+
+If you want to change pydantic model config, you should use `UseModelConfig` customizer:
+
+```py
+{!../docs_src/tutorials_advanced/customization.py [ln:53-56]!}
+```
+
+1. Now `Page` class will have `anystr_lower` set to `True`.
+
+
 ### Change page params type
 
 If you want to change type of page parameters, you should use `UseParams` customizer:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:31-39]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:35-41]!}
 ```
 
 1. Now `Page.__params_type__` attribute will be point to `MyParams` class.
@@ -90,7 +123,7 @@ If you want to change type of page parameters, you should use `UseParams` custom
 You can use multiple customizers at once, just pass them as to regular `Annotated`:
 
 ```py
-{!../docs_src/tutorials_advanced/customization.py [ln:41-47]!}
+{!../docs_src/tutorials_advanced/customization.py [ln:58-63]!}
 ```
 
 1. Now `CustomPage` will have `CustomPage` name, no total count of items, all params optional.

docs_src/tutorials_advanced/customization.py

@@ -1,7 +1,10 @@
 from fastapi_pagination import Page, Params
 from fastapi_pagination.customization import (
     CustomizedPage,
+    UseExcludedFields,
+    UseFieldsAliases,
     UseIncludeTotal,
+    UseModelConfig,
     UseName,
     UseOptionalParams,
     UseParams,
@@ -37,6 +40,21 @@ class MyParams(Params): ...  # your magic here
     UseParams(MyParams),  # (1)
 ]
 
+PageWithCount = CustomizedPage[
+    Page,
+    UseFieldsAliases(total="count"),  # (1)
+]
+
+PageWithoutTotal = CustomizedPage[
+    Page,
+    UseExcludedFields("total"),  # (1)
+]
+
+PageStrLower = CustomizedPage[
+    Page,
+    UseModelConfig(anystr_lower=True),  # (1)
+]
+
 CustomPage = CustomizedPage[
     Page,
     UseName("CustomPage"),