Passing Default Schema Argument in TypeScript Function

export function withAuthPageRequired<A, I, A2, I2, A3, I3>(
  Comp: React.FC<{ params: A; session: Session }>,
  schema: S.Schema<A, I>,
  profilSchema: S.Schema<A2, I2>,
  searchParamSchema: S.Schema<A3, I3> = S.Unknown, // <-  Type 'typeof Unknown' is not assignable to type 'Schema<A3, I3, never>'.
                                                   //.    Types of property 'Type' are incompatible.
                                                   //     Type 'unknown' is not assignable to type 'A3'.
) {