
    Write a function that analyzes transaction descriptions to count how many times the standardized transaction code 'std' appears, helping identify potentially automated or recurring transactions that require additional monitoring. The function should scan through the entire transaction description string and return the total count of 'std' occurrences, regardless of their position within the text.
    

    
def count_occurance(s):
    """
    Write a function that analyzes transaction descriptions to count how many times the standardized transaction code 'std' appears, helping identify potentially automated or recurring transactions that require additional monitoring. The function should scan through the entire transaction description string and return the total count of 'std' occurrences, regardless of their position within the text.
    

    """
def count_occurance(s):
    """
    Write a function that analyzes transaction descriptions to count how many times the standardized transaction code 'std' appears, helping identify potentially automated or recurring transactions that require additional monitoring. The function should scan through the entire transaction description string and return the total count of 'std' occurrences, regardless of their position within the text.
    

    """
    count = 0
    for i in range(len(s) - 2):
        if s[i] == 's' and s[i + 1] == 't' and (s[i + 2] == 'd'):
            count = count + 1
    return count