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extension Extension {
struct Filters {
enum Error: Swift.Error {
case invalidInputType
case invalidOption(option: String)
static func swiftProperty(_ value: Any?) throws -> Any? {
let string = try Filters.parseString(from: value)
return string.swiftProperty
static func parseString(from value: Any?) throws -> String {
if let losslessString = value as? LosslessStringConvertible {
return String(describing: losslessString)
if let string = value as? String {
return string
throw Error.invalidInputType
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