
    Write a function to validate loan application codes where a loan type identifier must be followed by one or more qualification markers in the bank's automated processing system. The loan type identifier is represented by 'a' and qualification markers are represented by 'b' in the standardized code format.
    

    
import re

def text_match_one(text):
    """
    Write a function to validate loan application codes where a loan type identifier must be followed by one or more qualification markers in the bank's automated processing system. The loan type identifier is represented by 'a' and qualification markers are represented by 'b' in the standardized code format.
    

    """
import re

def text_match_one(text):
    """
    Write a function to validate loan application codes where a loan type identifier must be followed by one or more qualification markers in the bank's automated processing system. The loan type identifier is represented by 'a' and qualification markers are represented by 'b' in the standardized code format.
    

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