[material-ui][types] Make slots partial in CreateSlotsAndSlotProptype

packages/mui-material/src/Accordion/Accordion.d.ts

@@ -12,13 +12,13 @@ export interface AccordionSlots {
    * The component that renders the heading.
    * @default 'h3'
    */
-  heading?: React.ElementType;
+  heading: React.ElementType;
   /**
    * The component that renders the transition.
    * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
    * @default Collapse
    */
-  transition?: React.JSXElementConstructor<
+  transition: React.JSXElementConstructor<
     TransitionProps & { children?: React.ReactElement<unknown, any> }
   >;
 }

packages/mui-material/src/Alert/Alert.d.ts

@@ -18,12 +18,12 @@ export interface AlertSlots {
    * The component that renders the close button.
    * @default IconButton
    */
-  closeButton?: React.ElementType;
+  closeButton: React.ElementType;
   /**
    * The component that renders the close icon.
    * @default svg
    */
-  closeIcon?: React.ElementType;
+  closeIcon: React.ElementType;
 }
 
 export type AlertSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/Autocomplete/Autocomplete.d.ts

@@ -89,17 +89,17 @@ export interface AutocompleteSlots {
    * The component used to render the listbox.
    * @default 'ul'
    */
-  listbox?: React.JSXElementConstructor<React.HTMLAttributes<HTMLElement>>;
+  listbox: React.JSXElementConstructor<React.HTMLAttributes<HTMLElement>>;
   /**
    * The component used to render the body of the popup.
    * @default Paper
    */
-  paper?: React.JSXElementConstructor<PaperProps>;
+  paper: React.JSXElementConstructor<PaperProps>;
   /**
    * The component used to position the popup.
    * @default Popper
    */
-  popper?: React.JSXElementConstructor<PopperProps>;
+  popper: React.JSXElementConstructor<PopperProps>;
 }
 
 export type AutocompleteSlotsAndSlotProps<

packages/mui-material/src/Avatar/Avatar.d.ts

@@ -12,7 +12,7 @@ export interface AvatarSlots {
    * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
    * @default Collapse
    */
-  img?: React.JSXElementConstructor<React.ImgHTMLAttributes<HTMLImageElement>>;
+  img: React.JSXElementConstructor<React.ImgHTMLAttributes<HTMLImageElement>>;
 }
 
 export interface AvatarPropsVariantOverrides {}

packages/mui-material/src/AvatarGroup/AvatarGroup.d.ts

@@ -16,7 +16,7 @@ export interface AvatarGroupPropsVariantOverrides {}
 export interface AvatarGroupComponentsPropsOverrides {}
 
 export interface AvatarGroupSlots {
-  surplus?: React.ElementType;
+  surplus: React.ElementType;
 }
 
 export type AvatarGroupSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/Backdrop/Backdrop.d.ts

@@ -12,13 +12,13 @@ export interface BackdropSlots {
    * The component that renders the root.
    * @default 'div'
    */
-  root?: React.ElementType;
+  root: React.ElementType;
   /**
    * The component that renders the transition.
    * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
    * @default Fade
    */
-  transition?: React.JSXElementConstructor<
+  transition: React.JSXElementConstructor<
     TransitionProps & { children: React.ReactElement<unknown, any> }
   >;
 }

packages/mui-material/src/FormControlLabel/FormControlLabel.d.ts

@@ -11,7 +11,7 @@ export interface FormControlLabelSlots {
    * This is unused if `disableTypography` is true.
    * @default Typography
    */
-  typography?: React.ElementType;
+  typography: React.ElementType;
 }
 
 export type FormControlLabelSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/PaginationItem/PaginationItem.d.ts

@@ -14,10 +14,10 @@ export interface PaginationItemPropsSizeOverrides {}
 export interface PaginationItemPropsColorOverrides {}
 
 export interface PaginationItemSlots {
-  first?: React.ElementType;
-  last?: React.ElementType;
-  next?: React.ElementType;
-  previous?: React.ElementType;
+  first: React.ElementType;
+  last: React.ElementType;
+  next: React.ElementType;
+  previous: React.ElementType;
 }
 
 export type PaginationItemSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/Popover/Popover.d.ts

@@ -9,8 +9,8 @@ import { PopoverClasses } from './popoverClasses';
 import { CreateSlotsAndSlotProps, SlotProps } from '../utils/types';
 
 export interface PopoverSlots {
-  root?: React.ElementType;
-  paper?: React.ElementType;
+  root: React.ElementType;
+  paper: React.ElementType;
 }
 
 export type PopoverSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/SpeedDial/SpeedDial.d.ts

@@ -16,7 +16,7 @@ export interface SpeedDialSlots {
    * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
    * @default {}
    */
-  transition?: React.JSXElementConstructor<
+  transition: React.JSXElementConstructor<
     TransitionProps & { children: React.ReactElement<unknown, any> }
   >;
 }

packages/mui-material/src/StepLabel/StepLabel.d.ts

@@ -11,11 +11,11 @@ export interface StepLabelSlots {
    * The component that renders the label.
    * @default span
    */
-  label?: React.ElementType;
+  label: React.ElementType;
   /**
    * The component to render in place of the [`StepIcon`](https://mui.com/material-ui/api/step-icon/).
    */
-  stepIcon?: React.ElementType<StepIconProps>;
+  stepIcon: React.ElementType<StepIconProps>;
 }
 
 export type StepLabelSlotsAndSlotProps = CreateSlotsAndSlotProps<

packages/mui-material/src/TextField/TextField.d.ts

@@ -22,27 +22,27 @@ export interface TextFieldSlots {
    * The component that renders the input.
    * @default OutlinedInput
    */
-  input?: React.ElementType;
+  input: React.ElementType;
   /**
    * The component that renders the input's label.
    * @default InputLabel
    */
-  inputLabel?: React.ElementType;
+  inputLabel: React.ElementType;
   /**
    * The html input element.
    * @default 'input'
    */
-  htmlInput?: React.ElementType;
+  htmlInput: React.ElementType;
   /**
    * The component that renders the helper text.
    * @default FormHelperText
    */
-  formHelperText?: React.ElementType;
+  formHelperText: React.ElementType;
   /**
    * The component that renders the select.
    * @default Select
    */
-  select?: React.ElementType;
+  select: React.ElementType;
 }
 
 export type TextFieldSlotsAndSlotProps<InputPropsType> = CreateSlotsAndSlotProps<

packages/mui-material/src/utils/types.ts

@@ -29,7 +29,7 @@ export type CreateSlotsAndSlotProps<Slots, K extends Record<keyof Slots, any>> =
    * The components used for each slot inside.
    * @default {}
    */
-  slots?: Slots;
+  slots?: Partial<Slots>;
   /**
    * The props used for each slot inside.
    * @default {}