
    Write a function that identifies the post ID of the safest content by examining a list of content assessments, where each assessment contains a post ID and its corresponding risk score. The function should return the post ID associated with the lowest risk score, indicating the content that the AI system has determined to be most appropriate for the platform.
    

    
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that identifies the post ID of the safest content by examining a list of content assessments, where each assessment contains a post ID and its corresponding risk score. The function should return the post ID associated with the lowest risk score, indicating the content that the AI system has determined to be most appropriate for the platform.
    

    """
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that identifies the post ID of the safest content by examining a list of content assessments, where each assessment contains a post ID and its corresponding risk score. The function should return the post ID associated with the lowest risk score, indicating the content that the AI system has determined to be most appropriate for the platform.
    

    """
    res = min(test_list, key=itemgetter(1))[0]
    return res