diff --git a/README.md b/README.md
index 33d6b32..b44b5e5 100644
--- a/README.md
+++ b/README.md
@@ -21,17 +21,19 @@ Windows, Mac (Intel & ARM) and Linux (manylinux, musllinux) are supported.
 ## How To Use
 
 ```py
+import binaryen
+from binaryen.type import Int32, TypeNone
+
 
 # Equivalent python function
 def add(x, y):
     return x + y
 
-func_inputs = binaryen.type.create([Int32, Int32])
 
 mod = binaryen.Module()
 mod.add_function(
     b"add",
-    func_inputs,
+    binaryen.type.create([Int32, Int32]),
     Int32,
     [Int32],
     mod.block(
@@ -51,6 +53,9 @@ mod.add_function(
     ),
 )
 
+if not mod.validate():
+    raise RuntimeError("Invalid module!")
+
 mod.add_function_export(b"add", b"add")
 
 mod.optimize()
diff --git a/binaryen/__functionref.py b/binaryen/__functionref.py
index e2da6ba..73c7fd5 100644
--- a/binaryen/__functionref.py
+++ b/binaryen/__functionref.py
@@ -10,13 +10,13 @@ def get_name(self) -> str:
         return lib.BinaryenFunctionGetName(self.ref)
 
     def get_num_vars(self) -> int:
-        return lib.BinaryenGetNumVars(self.ref)
+        return lib.BinaryenFunctionGetNumVars(self.ref)
 
     def get_var(self, index: int) -> BinaryenType:
         return lib.BinaryenFunctionGetVar(self.ref, index)
 
-    # def add_var(self, type: Type) -> int:
-    #     return lib.BinaryenFunctionAddVar(self.ref, type)
+    def add_var(self, type: BinaryenType) -> int:
+        return lib.BinaryenFunctionAddVar(self.ref, type)
 
     def get_num_locals(self) -> int:
         return lib.BinaryenFunctionGetNumLocals(self.ref)
diff --git a/binaryen/__global.py b/binaryen/__global.py
new file mode 100644
index 0000000..2daa391
--- /dev/null
+++ b/binaryen/__global.py
@@ -0,0 +1,19 @@
+from .__expression import Expression
+from ._binaryen import lib
+
+
+class Global:
+    def __init__(self, ref):
+        self.ref = ref
+
+    def get_name(self):
+        return str(lib.BinaryenGlobalGetName(self.ref))
+
+    def get_type(self):
+        return lib.BinaryenGlobalGetType(self.ref)
+
+    def is_mutable(self):
+        return bool(lib.BinaryenGlobalIsMutable(self.ref))
+
+    def get_init_expr(self):
+        return Expression(lib.BinaryenGlobalGetInitExpr(self.ref))
diff --git a/binaryen/__module.py b/binaryen/__module.py
index f57f1f7..3ec9924 100644
--- a/binaryen/__module.py
+++ b/binaryen/__module.py
@@ -6,14 +6,9 @@
 from .__expression import Block, Expression
 from .__feature import Feature
 from .__functionref import FunctionRef
+from .__global import Global
 from ._binaryen import ffi, lib
-from .internals import (
-    BinaryenGlobalRef,
-    BinaryenHeapType,
-    BinaryenLiteral,
-    BinaryenOp,
-    BinaryenType,
-)
+from .internals import BinaryenHeapType, BinaryenLiteral, BinaryenOp, BinaryenType
 from .type import TypeNone
 
 type BinaryenExportRef = Any
@@ -60,10 +55,10 @@ def i32(self, value: int):
     def i64(self, value: int):
         return self.const(literal.int64(value))
 
-    def f32(self, value: int):
+    def f32(self, value: float):
         return self.const(literal.float32(value))
 
-    def f64(self, value: int):
+    def f64(self, value: float):
         return self.const(literal.float64(value))
 
     def block(
@@ -385,11 +380,25 @@ def add_function_export(
 
     def add_global(
         self, name: bytes, global_type: BinaryenType, mutable: bool, init: Expression
-    ) -> BinaryenGlobalRef:
+    ):
         ref = lib.BinaryenAddGlobal(self.ref, name, global_type, mutable, init.ref)
-        return ref
+        return Global(ref)
+
+    def get_global(self, name: bytes):
+        ref = lib.BinaryenGetGlobal(self.ref, name)
+        if ref == ffi.NULL:
+            return None
+        return Global(ref)
+
+    def remove_global(self, name: bytes):
+        lib.BinaryenRemoveGlobal(self.ref, name)
+
+    def get_num_globals(self):
+        return int(lib.BinaryenGetNumGlobals(self.ref))
 
-    # TODO: GetGlobal, RemoveGlobal, GetNumGlobals, GetGlobalByIndex
+    def get_global_by_index(self, index: int):
+        ref = lib.BinaryenGetGlobalByIndex(self.ref, index)
+        return Global(ref)
 
     # TODO: AddTag, GetTag, RemoveTag
 
diff --git a/binaryen/internals.py b/binaryen/internals.py
index d82f5d1..1da821a 100644
--- a/binaryen/internals.py
+++ b/binaryen/internals.py
@@ -22,4 +22,3 @@ class __BaseType:
 BinaryenExternalKind = __NewType("BinaryenExternalKind", __BaseType)
 BinaryenOp = __NewType("BinaryenOp", __BaseType)
 BinaryenLiteral = __NewType("BinaryenLiteral", __BaseType)
-BinaryenGlobalRef = __NewType("BinaryenGlobalRef", __BaseType)
diff --git a/binaryen/type/__init__.py b/binaryen/type/__init__.py
index 61fb165..90eec05 100644
--- a/binaryen/type/__init__.py
+++ b/binaryen/type/__init__.py
@@ -6,6 +6,7 @@
 from .._binaryen import ffi as __ffi
 from .._binaryen import lib as __lib
 from . import array_type, heap_type, signature_type, struct_type
+from .to_str import to_str
 
 # These "types" are actually integers representing the type
 # e.g. none = 0, i32 = 2 etc.
diff --git a/binaryen/type/to_str.py b/binaryen/type/to_str.py
new file mode 100644
index 0000000..fecd5d5
--- /dev/null
+++ b/binaryen/type/to_str.py
@@ -0,0 +1,29 @@
+from .._binaryen import lib
+from ..internals import BinaryenType
+
+
+def to_str(type: BinaryenType) -> str:
+    return {
+        lib.BinaryenTypeNone(): "None",
+        lib.BinaryenTypeInt32(): "Int32",
+        lib.BinaryenTypeInt64(): "Int64",
+        lib.BinaryenTypeFloat32(): "Float32",
+        lib.BinaryenTypeFloat64(): "Float64",
+        lib.BinaryenTypeVec128(): "Vec128",
+        lib.BinaryenTypeFuncref(): "Funcref",
+        lib.BinaryenTypeExternref(): "Externref",
+        lib.BinaryenTypeAnyref(): "Anyref",
+        lib.BinaryenTypeEqref(): "Eqref",
+        lib.BinaryenTypeI31ref(): "I31ref",
+        lib.BinaryenTypeStructref(): "Structref",
+        lib.BinaryenTypeArrayref(): "Arrayref",
+        lib.BinaryenTypeStringref(): "Stringref",
+        lib.BinaryenTypeStringviewWTF8(): "StringviewWTF8",
+        lib.BinaryenTypeStringviewWTF16(): "StringviewWTF16",
+        lib.BinaryenTypeStringviewIter(): "StringviewIter",
+        lib.BinaryenTypeNullref(): "Nullref",
+        lib.BinaryenTypeNullExternref(): "NullExternref",
+        lib.BinaryenTypeNullFuncref(): "NullFuncref",
+        lib.BinaryenTypeUnreachable(): "Unreachable",
+        lib.BinaryenTypeAuto(): "Auto",
+    }[type]
diff --git a/examples/unary.py b/examples/unary.py
new file mode 100644
index 0000000..22c4d02
--- /dev/null
+++ b/examples/unary.py
@@ -0,0 +1,21 @@
+import binaryen
+
+mod = binaryen.Module()
+
+# f_sub = mod.unary(binaryen.operations.NegFloat32(), mod.f32(6.7))
+f_sub = mod.unary(
+    binaryen.operations.NegFloat32(), mod.local_get(0, binaryen.type.Float32)
+)
+
+mod.add_function(b"float_test", binaryen.type.Float32, binaryen.type.Float32, [], f_sub)
+mod.add_function_export(b"float_test", b"float_test")
+
+# i_sub = mod.binary(binaryen.operations.SubInt32(), mod.i32(0), mod.i32(10))
+# i_sub = mod.binary(binaryen.operations.S, mod.i32(0), mod.local_get(0, binaryen.type.Int32))
+
+mod.add_function(b"int_test", binaryen.type.Int32, binaryen.type.Int32, [], i_sub)
+mod.add_function_export(b"int_test", b"int_test")
+
+mod.optimize()
+
+mod.print()
diff --git a/pyproject.toml b/pyproject.toml
index e6ee8ad..bf2053a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "binaryen.py"
-version = "117.0.0"
+version = "117.1.0"
 description = "A Python wrapper for Binaryen"
 authors = [{ name = "Jonathan Hargreaves", email = "jhargreaves189@gmail.com" }]
 readme = "README.md"
diff --git a/binaryen/binaryen_build.py b/scripts/binaryen_build.py
similarity index 100%
rename from binaryen/binaryen_build.py
rename to scripts/binaryen_build.py
diff --git a/setup.py b/setup.py
index a667393..26d2480 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,5 @@
 from setuptools import setup
 
 setup(
-    cffi_modules=["binaryen/binaryen_build.py:ffibuilder"],
+    cffi_modules=["scripts/binaryen_build.py:ffibuilder"],
 )