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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_field(item_list, cond, comparator, target_field):
 """Finds the value of a field in a dict object that satisfies certain conditions. Args: item_list: A list of dict objects. cond: A param that defines the condition. comparator: A function that checks if an dict satisfies the condition. target_field: Name of the field whose value to be returned if an item satisfies the condition. Returns: Target value or None if no item satisfies the condition. """

    for item in item_list:
        if comparator(item, cond) and target_field in item:
            return item[target_field]
    return None