The set of values to which the operation applies as a JMESPath expression for evaluation against the context resource. An operation fails if the selection yields an exception, except as otherwise specified. Note that comparisons involving non-primitive values (objects or arrays) are not supported and will always evaluate to false.
A value to be compared against each item of the selection. If this value is an object, then it matches any item that would be unaffected by applying this value as a merge operation. Otherwise, it matches any item to which it is equal according to the rules of JSON Schema.
A precondition operation that requires a selection to be non-empty, and optionally to include an item with a specified value (useful for asserting that a value exists before attempting to update it, avoiding accidental creation). It fails if the selection is empty, or if value is provided and no item of the selection matches it.