Do you perhaps know how to "::" on tuples?

[0x13479]

-- Type 'string?' indeed could not be converted into 'string'
local key: string, value: string = string.match(
	"Key=Value",
	"(%w+)%s*=%s*(.*)")

local key: string, value: string = string.match(
	"Key=Value",
	"(%w+)%s*=%s*(.*)") :: string, string

-- That is a warning, because of an incorrect syntax. But
-- my question is: Is there something that would cast the
-- tuple returned by the function, or at least cast it to 'any'?

-- All of my attemps below are incorrect and show either a
-- warning or a syntax error.

local key: string, value: string = string.match(...) :: any
local key: string, value: string = string.match(...) :: (any)
local key: string, value: string = string.match(...) :: (any, any)
local key: string, value: string = string.match(...) :: (...any)
local key: string, value: string = string.match(...) :: (any...)

[0x13479]

Actually, it seems like a bug:

local key: string, value: string = string.match("", "") :: string, string
--Type Error: (7,1) Type 'typeof(string)' could not be converted into 'string'