I am unable to use this function : validationMessages() to validate my text input.

Sample of code failing:

TextInput::make('someValue')
                    ->label('someLabel')
                    ->integer()
                    ->validationMessages([
                        'integer' => 'The :attribute value should be Integer.',
                    ])
                    ->required(),

TextInput::make('someValue')
                    ->label('someLabel')
                    ->integer()
                    ->validationMessages([
                        'integer' => 'The :attribute value should be Integer.',
                    ])
                    ->required(),