<ul data-eligibleForWebStory="true"><li>To split items bought according to quantities, a function named 'split_items_and_quantities' will be created.</li><li>Type hinting is used to specify expected data types for variables, function arguments, and return values.</li><li>Documentation strings provide information relevant for using the function, including definition, arguments, and expected output.</li><li>The function rejects incorrect input types before execution and includes error handling.</li><li>Following the Single Responsibility principle, the function focuses on separating items from quantities using regex and appending to columns.</li><li>Efficient code includes error handling using try-catch blocks to highlight and capture runtime errors.</li><li>The function combines multiple tasks within its logic, including parsing items from quantities and creating a data frame.</li></ul>

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