Question: In a 5G System's OpenAPI Specification, what is the purpose of including an "anyOf" keyword with an object having no properties in the JSON PATCH "oneOf" list for modifying a JSON object?
Option 1: To enforce strict schema validation for all possible patch operations.
Option 2: To provide a clear description of all supported modifications to developers, excluding any extensions.
Option 3: To restrict patch operations to only those explicitly listed in the "oneOf" keyword.
Option 4: To allow for future extensions or optional attributes without immediate explicit support.
Explanation: The inclusion of an "anyOf" keyword with an empty object alongside a "oneOf" list in JSON PATCH enables flexibility for potential future extensions or the introduction of new, optional attributes. This approach supports scenarios where new features might not be immediately supported but are anticipated, or when the PATCH operation serves as the initial API call, accommodating evolving requirements without rigidly defining all permissible modifications upfront.