
    Create a function to validate delivery hub status codes in a fleet management system, where a valid code must contain a hub identifier ('a') followed by one or more vehicle availability indicators ('b'). The function should verify if a given status code follows this format to ensure accurate route planning and vehicle allocation from each delivery hub.
    

    
import re

def text_match_one(text):
    """
    Create a function to validate delivery hub status codes in a fleet management system, where a valid code must contain a hub identifier ('a') followed by one or more vehicle availability indicators ('b'). The function should verify if a given status code follows this format to ensure accurate route planning and vehicle allocation from each delivery hub.
    

    """
import re

def text_match_one(text):
    """
    Create a function to validate delivery hub status codes in a fleet management system, where a valid code must contain a hub identifier ('a') followed by one or more vehicle availability indicators ('b'). The function should verify if a given status code follows this format to ensure accurate route planning and vehicle allocation from each delivery hub.
    

    """
    patterns = 'ab+?'
    if re.search(patterns, text):
        return True
    else:
        return False