pre-installations and preparations

node_modules/@mui/material/ButtonGroup/buttonGroupClasses.js

@@ -0,0 +1,7 @@
+import generateUtilityClasses from '@mui/utils/generateUtilityClasses';
+import generateUtilityClass from '@mui/utils/generateUtilityClass';
+export function getButtonGroupUtilityClass(slot) {
+  return generateUtilityClass('MuiButtonGroup', slot);
+}
+const buttonGroupClasses = generateUtilityClasses('MuiButtonGroup', ['root', 'contained', 'outlined', 'text', 'disableElevation', 'disabled', 'firstButton', 'fullWidth', 'vertical', 'grouped', 'groupedHorizontal', 'groupedVertical', 'groupedText', 'groupedTextHorizontal', 'groupedTextVertical', 'groupedTextPrimary', 'groupedTextSecondary', 'groupedOutlined', 'groupedOutlinedHorizontal', 'groupedOutlinedVertical', 'groupedOutlinedPrimary', 'groupedOutlinedSecondary', 'groupedContained', 'groupedContainedHorizontal', 'groupedContainedVertical', 'groupedContainedPrimary', 'groupedContainedSecondary', 'lastButton', 'middleButton']);
+export default buttonGroupClasses;