diff --git a/crates/wasmparser/src/validator/component.rs b/crates/wasmparser/src/validator/component.rs
index 62b855c0fb..161541f3c6 100644
--- a/crates/wasmparser/src/validator/component.rs
+++ b/crates/wasmparser/src/validator/component.rs
@@ -1437,7 +1437,7 @@ impl ComponentState {
         };
 
         self.core_funcs
-            .push(types.intern_func_type(FuncType::new([ValType::I32], []), offset));
+            .push(types.intern_func_type(FuncType::new([ValType::I32; 2], []), offset));
         Ok(())
     }
 
@@ -1621,7 +1621,7 @@ impl ComponentState {
         };
 
         self.core_funcs
-            .push(types.intern_func_type(FuncType::new([ValType::I32], []), offset));
+            .push(types.intern_func_type(FuncType::new([ValType::I32; 2], []), offset));
         Ok(())
     }
 
diff --git a/crates/wit-component/src/validation.rs b/crates/wit-component/src/validation.rs
index aeb626141e..c78ff8c52c 100644
--- a/crates/wit-component/src/validation.rs
+++ b/crates/wit-component/src/validation.rs
@@ -888,7 +888,7 @@ impl ImportMap {
             if async_ {
                 bail!("async `future.close-readable` calls not supported");
             }
-            validate_func_sig(name, &FuncType::new([ValType::I32], []), ty)?;
+            validate_func_sig(name, &FuncType::new([ValType::I32; 2], []), ty)?;
             Import::FutureCloseReadable(info)
         } else if let Some(info) = prefixed_payload("[stream-new-") {
             if async_ {
@@ -918,7 +918,7 @@ impl ImportMap {
             if async_ {
                 bail!("async `stream.close-readable` calls not supported");
             }
-            validate_func_sig(name, &FuncType::new([ValType::I32], []), ty)?;
+            validate_func_sig(name, &FuncType::new([ValType::I32; 2], []), ty)?;
             Import::StreamCloseReadable(info)
         } else {
             return Ok(None);
diff --git a/crates/wit-component/tests/components/async-streams-and-futures/component.wat b/crates/wit-component/tests/components/async-streams-and-futures/component.wat
index 4e0883c60c..0f3af2f04c 100644
--- a/crates/wit-component/tests/components/async-streams-and-futures/component.wat
+++ b/crates/wit-component/tests/components/async-streams-and-futures/component.wat
@@ -19,9 +19,8 @@
     (type (;1;) (func (result i32)))
     (type (;2;) (func (param i32 i32 i32) (result i32)))
     (type (;3;) (func (param i32) (result i32)))
-    (type (;4;) (func (param i32)))
-    (type (;5;) (func (param i32 i32)))
-    (type (;6;) (func (param i32 i32 i32 i32) (result i32)))
+    (type (;4;) (func (param i32 i32)))
+    (type (;5;) (func (param i32 i32 i32 i32) (result i32)))
     (import "$root" "[async]foo" (func (;0;) (type 0)))
     (import "foo:foo/bar" "[async]foo" (func (;1;) (type 0)))
     (import "$root" "[stream-new-2]foo" (func (;2;) (type 1)))
@@ -30,96 +29,96 @@
     (import "$root" "[stream-cancel-read-2]foo" (func (;5;) (type 3)))
     (import "$root" "[stream-cancel-write-2]foo" (func (;6;) (type 3)))
     (import "$root" "[stream-close-readable-2]foo" (func (;7;) (type 4)))
-    (import "$root" "[stream-close-writable-2]foo" (func (;8;) (type 5)))
+    (import "$root" "[stream-close-writable-2]foo" (func (;8;) (type 4)))
     (import "foo:foo/bar" "[stream-new-2]foo" (func (;9;) (type 1)))
     (import "foo:foo/bar" "[stream-read-2]foo" (func (;10;) (type 2)))
     (import "foo:foo/bar" "[stream-write-2]foo" (func (;11;) (type 2)))
     (import "foo:foo/bar" "[stream-cancel-read-2]foo" (func (;12;) (type 3)))
     (import "foo:foo/bar" "[stream-cancel-write-2]foo" (func (;13;) (type 3)))
     (import "foo:foo/bar" "[stream-close-readable-2]foo" (func (;14;) (type 4)))
-    (import "foo:foo/bar" "[stream-close-writable-2]foo" (func (;15;) (type 5)))
+    (import "foo:foo/bar" "[stream-close-writable-2]foo" (func (;15;) (type 4)))
     (import "$root" "[future-new-0]foo" (func (;16;) (type 1)))
     (import "$root" "[future-read-0]foo" (func (;17;) (type 0)))
     (import "$root" "[future-write-0]foo" (func (;18;) (type 0)))
     (import "$root" "[future-cancel-read-0]foo" (func (;19;) (type 3)))
     (import "$root" "[future-cancel-write-0]foo" (func (;20;) (type 3)))
     (import "$root" "[future-close-readable-0]foo" (func (;21;) (type 4)))
-    (import "$root" "[future-close-writable-0]foo" (func (;22;) (type 5)))
+    (import "$root" "[future-close-writable-0]foo" (func (;22;) (type 4)))
     (import "foo:foo/bar" "[future-new-0]foo" (func (;23;) (type 1)))
     (import "foo:foo/bar" "[future-read-0]foo" (func (;24;) (type 0)))
     (import "foo:foo/bar" "[future-write-0]foo" (func (;25;) (type 0)))
     (import "foo:foo/bar" "[future-cancel-read-0]foo" (func (;26;) (type 3)))
     (import "foo:foo/bar" "[future-cancel-write-0]foo" (func (;27;) (type 3)))
     (import "foo:foo/bar" "[future-close-readable-0]foo" (func (;28;) (type 4)))
-    (import "foo:foo/bar" "[future-close-writable-0]foo" (func (;29;) (type 5)))
+    (import "foo:foo/bar" "[future-close-writable-0]foo" (func (;29;) (type 4)))
     (import "$root" "[future-new-1]foo" (func (;30;) (type 1)))
     (import "$root" "[future-read-1]foo" (func (;31;) (type 0)))
     (import "$root" "[future-write-1]foo" (func (;32;) (type 0)))
     (import "$root" "[future-cancel-read-1]foo" (func (;33;) (type 3)))
     (import "$root" "[future-cancel-write-1]foo" (func (;34;) (type 3)))
     (import "$root" "[future-close-readable-1]foo" (func (;35;) (type 4)))
-    (import "$root" "[future-close-writable-1]foo" (func (;36;) (type 5)))
+    (import "$root" "[future-close-writable-1]foo" (func (;36;) (type 4)))
     (import "foo:foo/bar" "[future-new-1]foo" (func (;37;) (type 1)))
     (import "foo:foo/bar" "[future-read-1]foo" (func (;38;) (type 0)))
     (import "foo:foo/bar" "[future-write-1]foo" (func (;39;) (type 0)))
     (import "foo:foo/bar" "[future-cancel-read-1]foo" (func (;40;) (type 3)))
     (import "foo:foo/bar" "[future-cancel-write-1]foo" (func (;41;) (type 3)))
     (import "foo:foo/bar" "[future-close-readable-1]foo" (func (;42;) (type 4)))
-    (import "foo:foo/bar" "[future-close-writable-1]foo" (func (;43;) (type 5)))
+    (import "foo:foo/bar" "[future-close-writable-1]foo" (func (;43;) (type 4)))
     (import "[export]$root" "[stream-new-2]foo" (func (;44;) (type 1)))
     (import "[export]$root" "[stream-read-2]foo" (func (;45;) (type 2)))
     (import "[export]$root" "[stream-write-2]foo" (func (;46;) (type 2)))
     (import "[export]$root" "[stream-cancel-read-2]foo" (func (;47;) (type 3)))
     (import "[export]$root" "[stream-cancel-write-2]foo" (func (;48;) (type 3)))
     (import "[export]$root" "[stream-close-readable-2]foo" (func (;49;) (type 4)))
-    (import "[export]$root" "[stream-close-writable-2]foo" (func (;50;) (type 5)))
+    (import "[export]$root" "[stream-close-writable-2]foo" (func (;50;) (type 4)))
     (import "[export]foo:foo/bar" "[stream-new-2]foo" (func (;51;) (type 1)))
     (import "[export]foo:foo/bar" "[stream-read-2]foo" (func (;52;) (type 2)))
     (import "[export]foo:foo/bar" "[stream-write-2]foo" (func (;53;) (type 2)))
     (import "[export]foo:foo/bar" "[stream-cancel-read-2]foo" (func (;54;) (type 3)))
     (import "[export]foo:foo/bar" "[stream-cancel-write-2]foo" (func (;55;) (type 3)))
     (import "[export]foo:foo/bar" "[stream-close-readable-2]foo" (func (;56;) (type 4)))
-    (import "[export]foo:foo/bar" "[stream-close-writable-2]foo" (func (;57;) (type 5)))
+    (import "[export]foo:foo/bar" "[stream-close-writable-2]foo" (func (;57;) (type 4)))
     (import "[export]$root" "[future-new-0]foo" (func (;58;) (type 1)))
     (import "[export]$root" "[future-read-0]foo" (func (;59;) (type 0)))
     (import "[export]$root" "[future-write-0]foo" (func (;60;) (type 0)))
     (import "[export]$root" "[future-cancel-read-0]foo" (func (;61;) (type 3)))
     (import "[export]$root" "[future-cancel-write-0]foo" (func (;62;) (type 3)))
     (import "[export]$root" "[future-close-readable-0]foo" (func (;63;) (type 4)))
-    (import "[export]$root" "[future-close-writable-0]foo" (func (;64;) (type 5)))
+    (import "[export]$root" "[future-close-writable-0]foo" (func (;64;) (type 4)))
     (import "[export]foo:foo/bar" "[future-new-0]foo" (func (;65;) (type 1)))
     (import "[export]foo:foo/bar" "[future-read-0]foo" (func (;66;) (type 0)))
     (import "[export]foo:foo/bar" "[future-write-0]foo" (func (;67;) (type 0)))
     (import "[export]foo:foo/bar" "[future-cancel-read-0]foo" (func (;68;) (type 3)))
     (import "[export]foo:foo/bar" "[future-cancel-write-0]foo" (func (;69;) (type 3)))
     (import "[export]foo:foo/bar" "[future-close-readable-0]foo" (func (;70;) (type 4)))
-    (import "[export]foo:foo/bar" "[future-close-writable-0]foo" (func (;71;) (type 5)))
+    (import "[export]foo:foo/bar" "[future-close-writable-0]foo" (func (;71;) (type 4)))
     (import "[export]$root" "[future-new-1]foo" (func (;72;) (type 1)))
     (import "[export]$root" "[future-read-1]foo" (func (;73;) (type 0)))
     (import "[export]$root" "[future-write-1]foo" (func (;74;) (type 0)))
     (import "[export]$root" "[future-cancel-read-1]foo" (func (;75;) (type 3)))
     (import "[export]$root" "[future-cancel-write-1]foo" (func (;76;) (type 3)))
     (import "[export]$root" "[future-close-readable-1]foo" (func (;77;) (type 4)))
-    (import "[export]$root" "[future-close-writable-1]foo" (func (;78;) (type 5)))
+    (import "[export]$root" "[future-close-writable-1]foo" (func (;78;) (type 4)))
     (import "[export]foo:foo/bar" "[future-new-1]foo" (func (;79;) (type 1)))
     (import "[export]foo:foo/bar" "[future-read-1]foo" (func (;80;) (type 0)))
     (import "[export]foo:foo/bar" "[future-write-1]foo" (func (;81;) (type 0)))
     (import "[export]foo:foo/bar" "[future-cancel-read-1]foo" (func (;82;) (type 3)))
     (import "[export]foo:foo/bar" "[future-cancel-write-1]foo" (func (;83;) (type 3)))
     (import "[export]foo:foo/bar" "[future-close-readable-1]foo" (func (;84;) (type 4)))
-    (import "[export]foo:foo/bar" "[future-close-writable-1]foo" (func (;85;) (type 5)))
+    (import "[export]foo:foo/bar" "[future-close-writable-1]foo" (func (;85;) (type 4)))
     (memory (;0;) 1)
     (export "[async-stackful]foo" (func 86))
     (export "[async-stackful]foo:foo/bar#foo" (func 87))
     (export "memory" (memory 0))
     (export "cabi_realloc" (func 88))
-    (func (;86;) (type 5) (param i32 i32)
+    (func (;86;) (type 4) (param i32 i32)
       unreachable
     )
-    (func (;87;) (type 5) (param i32 i32)
+    (func (;87;) (type 4) (param i32 i32)
       unreachable
     )
-    (func (;88;) (type 6) (param i32 i32 i32 i32) (result i32)
+    (func (;88;) (type 5) (param i32 i32 i32 i32) (result i32)
       unreachable
     )
     (@producers
diff --git a/crates/wit-component/tests/components/async-streams-and-futures/module.wat b/crates/wit-component/tests/components/async-streams-and-futures/module.wat
index 934fa4bb48..952d769912 100644
--- a/crates/wit-component/tests/components/async-streams-and-futures/module.wat
+++ b/crates/wit-component/tests/components/async-streams-and-futures/module.wat
@@ -6,84 +6,84 @@
   (func (import "$root" "[stream-write-2]foo") (param i32 i32 i32) (result i32))
   (func (import "$root" "[stream-cancel-read-2]foo") (param i32) (result i32))
   (func (import "$root" "[stream-cancel-write-2]foo") (param i32) (result i32))
-  (func (import "$root" "[stream-close-readable-2]foo") (param i32))
+  (func (import "$root" "[stream-close-readable-2]foo") (param i32 i32))
   (func (import "$root" "[stream-close-writable-2]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[stream-new-2]foo") (result i32))
   (func (import "foo:foo/bar" "[stream-read-2]foo") (param i32 i32 i32) (result i32))
   (func (import "foo:foo/bar" "[stream-write-2]foo") (param i32 i32 i32) (result i32))
   (func (import "foo:foo/bar" "[stream-cancel-read-2]foo") (param i32) (result i32))
   (func (import "foo:foo/bar" "[stream-cancel-write-2]foo") (param i32) (result i32))
-  (func (import "foo:foo/bar" "[stream-close-readable-2]foo") (param i32))
+  (func (import "foo:foo/bar" "[stream-close-readable-2]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[stream-close-writable-2]foo") (param i32 i32))
   (func (import "$root" "[future-new-0]foo") (result i32))
   (func (import "$root" "[future-read-0]foo") (param i32 i32) (result i32))
   (func (import "$root" "[future-write-0]foo") (param i32 i32) (result i32))
   (func (import "$root" "[future-cancel-read-0]foo") (param i32) (result i32))
   (func (import "$root" "[future-cancel-write-0]foo") (param i32) (result i32))
-  (func (import "$root" "[future-close-readable-0]foo") (param i32))
+  (func (import "$root" "[future-close-readable-0]foo") (param i32 i32))
   (func (import "$root" "[future-close-writable-0]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[future-new-0]foo") (result i32))
   (func (import "foo:foo/bar" "[future-read-0]foo") (param i32 i32) (result i32))
   (func (import "foo:foo/bar" "[future-write-0]foo") (param i32 i32) (result i32))
   (func (import "foo:foo/bar" "[future-cancel-read-0]foo") (param i32) (result i32))
   (func (import "foo:foo/bar" "[future-cancel-write-0]foo") (param i32) (result i32))
-  (func (import "foo:foo/bar" "[future-close-readable-0]foo") (param i32))
+  (func (import "foo:foo/bar" "[future-close-readable-0]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[future-close-writable-0]foo") (param i32 i32))
   (func (import "$root" "[future-new-1]foo") (result i32))
   (func (import "$root" "[future-read-1]foo") (param i32 i32) (result i32))
   (func (import "$root" "[future-write-1]foo") (param i32 i32) (result i32))
   (func (import "$root" "[future-cancel-read-1]foo") (param i32) (result i32))
   (func (import "$root" "[future-cancel-write-1]foo") (param i32) (result i32))
-  (func (import "$root" "[future-close-readable-1]foo") (param i32))
+  (func (import "$root" "[future-close-readable-1]foo") (param i32 i32))
   (func (import "$root" "[future-close-writable-1]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[future-new-1]foo") (result i32))
   (func (import "foo:foo/bar" "[future-read-1]foo") (param i32 i32) (result i32))
   (func (import "foo:foo/bar" "[future-write-1]foo") (param i32 i32) (result i32))
   (func (import "foo:foo/bar" "[future-cancel-read-1]foo") (param i32) (result i32))
   (func (import "foo:foo/bar" "[future-cancel-write-1]foo") (param i32) (result i32))
-  (func (import "foo:foo/bar" "[future-close-readable-1]foo") (param i32))
+  (func (import "foo:foo/bar" "[future-close-readable-1]foo") (param i32 i32))
   (func (import "foo:foo/bar" "[future-close-writable-1]foo") (param i32 i32))
   (func (import "[export]$root" "[stream-new-2]foo") (result i32))
   (func (import "[export]$root" "[stream-read-2]foo") (param i32 i32 i32) (result i32))
   (func (import "[export]$root" "[stream-write-2]foo") (param i32 i32 i32) (result i32))
   (func (import "[export]$root" "[stream-cancel-read-2]foo") (param i32) (result i32))
   (func (import "[export]$root" "[stream-cancel-write-2]foo") (param i32) (result i32))
-  (func (import "[export]$root" "[stream-close-readable-2]foo") (param i32))
+  (func (import "[export]$root" "[stream-close-readable-2]foo") (param i32 i32))
   (func (import "[export]$root" "[stream-close-writable-2]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[stream-new-2]foo") (result i32))
   (func (import "[export]foo:foo/bar" "[stream-read-2]foo") (param i32 i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[stream-write-2]foo") (param i32 i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[stream-cancel-read-2]foo") (param i32) (result i32))
   (func (import "[export]foo:foo/bar" "[stream-cancel-write-2]foo") (param i32) (result i32))
-  (func (import "[export]foo:foo/bar" "[stream-close-readable-2]foo") (param i32))
+  (func (import "[export]foo:foo/bar" "[stream-close-readable-2]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[stream-close-writable-2]foo") (param i32 i32))
   (func (import "[export]$root" "[future-new-0]foo") (result i32))
   (func (import "[export]$root" "[future-read-0]foo") (param i32 i32) (result i32))
   (func (import "[export]$root" "[future-write-0]foo") (param i32 i32) (result i32))
   (func (import "[export]$root" "[future-cancel-read-0]foo") (param i32) (result i32))
   (func (import "[export]$root" "[future-cancel-write-0]foo") (param i32) (result i32))
-  (func (import "[export]$root" "[future-close-readable-0]foo") (param i32))
+  (func (import "[export]$root" "[future-close-readable-0]foo") (param i32 i32))
   (func (import "[export]$root" "[future-close-writable-0]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[future-new-0]foo") (result i32))
   (func (import "[export]foo:foo/bar" "[future-read-0]foo") (param i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-write-0]foo") (param i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-cancel-read-0]foo") (param i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-cancel-write-0]foo") (param i32) (result i32))
-  (func (import "[export]foo:foo/bar" "[future-close-readable-0]foo") (param i32))
+  (func (import "[export]foo:foo/bar" "[future-close-readable-0]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[future-close-writable-0]foo") (param i32 i32))
   (func (import "[export]$root" "[future-new-1]foo") (result i32))
   (func (import "[export]$root" "[future-read-1]foo") (param i32 i32) (result i32))
   (func (import "[export]$root" "[future-write-1]foo") (param i32 i32) (result i32))
   (func (import "[export]$root" "[future-cancel-read-1]foo") (param i32) (result i32))
   (func (import "[export]$root" "[future-cancel-write-1]foo") (param i32) (result i32))
-  (func (import "[export]$root" "[future-close-readable-1]foo") (param i32))
+  (func (import "[export]$root" "[future-close-readable-1]foo") (param i32 i32))
   (func (import "[export]$root" "[future-close-writable-1]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[future-new-1]foo") (result i32))
   (func (import "[export]foo:foo/bar" "[future-read-1]foo") (param i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-write-1]foo") (param i32 i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-cancel-read-1]foo") (param i32) (result i32))
   (func (import "[export]foo:foo/bar" "[future-cancel-write-1]foo") (param i32) (result i32))
-  (func (import "[export]foo:foo/bar" "[future-close-readable-1]foo") (param i32))
+  (func (import "[export]foo:foo/bar" "[future-close-readable-1]foo") (param i32 i32))
   (func (import "[export]foo:foo/bar" "[future-close-writable-1]foo") (param i32 i32))
   (func (export "[async-stackful]foo") (param i32 i32) unreachable)
   (func (export "[async-stackful]foo:foo/bar#foo") (param i32 i32) unreachable)
diff --git a/tests/local/component-model-async/futures.wast b/tests/local/component-model-async/futures.wast
index 89678f253f..a003b5863d 100644
--- a/tests/local/component-model-async/futures.wast
+++ b/tests/local/component-model-async/futures.wast
@@ -169,7 +169,7 @@
 ;; future.close-readable
 (component
   (core module $m
-    (import "" "future.close-readable" (func $future-close-readable (param i32)))
+    (import "" "future.close-readable" (func $future-close-readable (param i32 i32)))
   )
   (type $future-type (future u8))
   (core func $future-close-readable (canon future.close-readable $future-type))
@@ -180,7 +180,7 @@
 (assert_invalid
   (component
     (core module $m
-      (import "" "future.close-readable" (func $future-close-readable (param i32 i32) (result i32)))
+      (import "" "future.close-readable" (func $future-close-readable (param i32) (result i32)))
     )
     (type $future-type (future u8))
     (core func $future-close-readable (canon future.close-readable $future-type))
diff --git a/tests/local/component-model-async/streams.wast b/tests/local/component-model-async/streams.wast
index 0606c1c93a..b71991ad02 100644
--- a/tests/local/component-model-async/streams.wast
+++ b/tests/local/component-model-async/streams.wast
@@ -169,7 +169,7 @@
 ;; stream.close-readable
 (component
   (core module $m
-    (import "" "stream.close-readable" (func $stream-close-readable (param i32)))
+    (import "" "stream.close-readable" (func $stream-close-readable (param i32 i32)))
   )
   (type $stream-type (stream u8))
   (core func $stream-close-readable (canon stream.close-readable $stream-type))
@@ -180,7 +180,7 @@
 (assert_invalid
   (component
     (core module $m
-      (import "" "stream.close-readable" (func $stream-close-readable (param i32 i32) (result i32)))
+      (import "" "stream.close-readable" (func $stream-close-readable (param i32) (result i32)))
     )
     (type $stream-type (stream u8))
     (core func $stream-close-readable (canon stream.close-readable $stream-type))
diff --git a/tests/snapshots/local/component-model-async/futures.wast/13.print b/tests/snapshots/local/component-model-async/futures.wast/13.print
index 7754683368..9ba2e6013a 100644
--- a/tests/snapshots/local/component-model-async/futures.wast/13.print
+++ b/tests/snapshots/local/component-model-async/futures.wast/13.print
@@ -1,6 +1,6 @@
 (component
   (core module $m (;0;)
-    (type (;0;) (func (param i32)))
+    (type (;0;) (func (param i32 i32)))
     (import "" "future.close-readable" (func $future-close-readable (;0;) (type 0)))
   )
   (type $future-type (;0;) (future u8))
diff --git a/tests/snapshots/local/component-model-async/streams.wast/13.print b/tests/snapshots/local/component-model-async/streams.wast/13.print
index 55c45e4b9d..d50386ff54 100644
--- a/tests/snapshots/local/component-model-async/streams.wast/13.print
+++ b/tests/snapshots/local/component-model-async/streams.wast/13.print
@@ -1,6 +1,6 @@
 (component
   (core module $m (;0;)
-    (type (;0;) (func (param i32)))
+    (type (;0;) (func (param i32 i32)))
     (import "" "stream.close-readable" (func $stream-close-readable (;0;) (type 0)))
   )
   (type $stream-type (;0;) (stream u8))