bl_info = {
    "name" : "Keyframe Visibility",
    "description" : "Use operators to hide or show selected objects, and insert keyframes.",
    "author" : "hisanimations",
    "version" : (1, 0, 0),
    "blender" : (3, 0, 0),
    "location" : "Search Menu > Show Now, Hide Next / Hide Before, Show Now",
    "support" : "COMMUNITY",
    "category" : "3D View",
}
import bpy

def ToggleHide(a, b):
    a.hide_viewport = False if b else True
    a.hide_render = False if b else True
    a.keyframe_insert(data_path='hide_viewport')
    a.keyframe_insert(data_path='hide_render')
class HISANIM_OT_SHOWHIDE(bpy.types.Operator):
    bl_idname = 'hisanim.showhide'
    bl_label = 'Show Now, Hide Next'
    bl_description = 'Keyframe visibility to show current frame, hide next frame'

    def execute(self, context):
        for i in bpy.context.selected_objects:
            ToggleHide(i, True)
            context.scene.frame_current += 1
            ToggleHide(i, False)
            context.scene.frame_current += -1

        return {'FINISHED'}

class HISANIM_OT_HIDESHOW(bpy.types.Operator):
    bl_idname = 'hisanim.hideshow'
    bl_label = 'Hide Before, Show Now'
    bl_description = 'man'

    def execute(self, context):
        for i in bpy.context.selected_objects:
            context.scene.frame_current += -1
            ToggleHide(i, False)
            context.scene.frame_current += 1
            ToggleHide(i, True)
        return {'FINISHED'}

classes = [HISANIM_OT_SHOWHIDE, HISANIM_OT_HIDESHOW]

def register():
    for i in classes:
        bpy.utils.register_class(i)
def unregister():
    for i in classes:
        bpy.utils.unregister_class(i)

if __name__ == '__main__':
    register()