Add example of usage of multiple text filter

examples/text_filter_example.py

@@ -0,0 +1,50 @@
+"""
+This is a bot to show the usage of the builtin Text filter
+Instead of a list, a single element can be passed to any filter, it will be treated as list with an element
+"""
+
+import logging
+
+from aiogram import Bot, Dispatcher, executor, types
+
+API_TOKEN = 'API_TOKEN_HERE'
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+
+# Initialize bot and dispatcher
+bot = Bot(token=API_TOKEN)
+dp = Dispatcher(bot)
+
+# if the text from user in the list
+@dp.message_handler(text=['text1', 'text2'])
+async def text_in_handler(message: types.Message):
+    await message.answer("The message text is in the list!")
+
+# if the text contains any string
+@dp.message_handler(text_contains='example1')
+@dp.message_handler(text_contains='example2')
+async def text_contains_any_handler(message: types.Message):
+    await message.answer("The message text contains any of strings")
+
+
+# if the text contains all the strings from the list
+@dp.message_handler(text_contains=['str1', 'str2'])
+async def text_contains_all_handler(message: types.Message):
+    await message.answer("The message text contains all strings from the list")
+
+
+# if the text starts with any string from the list
+@dp.message_handler(text_startswith=['prefix1', 'prefix2'])
+async def text_startswith_handler(message: types.Message):
+    await message.answer("The message text starts with any of prefixes")
+
+
+# if the text ends with any string from the list
+@dp.message_handler(text_endswith=['postfix1', 'postfix2'])
+async def text_endswith_handler(message: types.Message):
+    await message.answer("The message text ends with any of postfixes")
+
+
+if __name__ == '__main__':
+    executor.start_polling(dp, skip_updates=True)