refactor(streamingRequest): internal method for request functions

- TS package type inference for request functions.
- Type fix for Lua's waitFor callback.
- Lua request functions cannot return nil.

imports/requestNamedPtfxAsset/client.lua

@@ -1,7 +1,7 @@
 ---Load a named particle effect. When called from a thread, it will yield until it has loaded.
 ---@param ptFxName string
 ---@param timeout number? Approximate milliseconds to wait for the particle effect to load. Default is 1000.
----@return string? ptFxName
+---@return string ptFxName
 function lib.requestNamedPtfxAsset(ptFxName, timeout)
     if HasNamedPtfxAssetLoaded(ptFxName) then return ptFxName end
 
@@ -9,13 +9,7 @@ function lib.requestNamedPtfxAsset(ptFxName, timeout)
         error(("expected ptFxName to have type 'string' (received %s)"):format(type(ptFxName)))
     end
 
-    RequestNamedPtfxAsset(ptFxName)
-
-    if not coroutine.isyieldable() then return ptFxName end
-
-    return lib.waitFor(function()
-        if HasNamedPtfxAssetLoaded(ptFxName) then return ptFxName end
-    end, ("failed to load ptFxName '%s'"):format(ptFxName), timeout)
+    return lib.streamingRequest(RequestNamedPtfxAsset, HasNamedPtfxAssetLoaded, 'ptFxName', ptFxName, timeout)
 end
 
 return lib.requestNamedPtfxAsset