Memory leak in python bindings?

[Sola85]

My application requires many independent wasm modules to be parsed and a function from them to be executed. While implementing this, I noticed my RAM usage continuouly growing. Here is a minimal example that quickly fills my RAM, adopted from the pywasm3 example:

import wasm3, base64
import gc

# WebAssembly binary
WASM = base64.b64decode("AGFzbQEAAAABBgFgAX4"
    "BfgMCAQAHBwEDZmliAAAKHwEdACAAQgJUBEAgAA"
    "8LIABCAn0QACAAQgF9EAB8Dws=")

for i in range(1000000):
    if i % 100 == 0: gc.collect()

    env = wasm3.Environment()
    rt  = env.new_runtime(2048)
    mod = env.parse_module(WASM)
    rt.load(mod)
    #wasm_fib = rt.find_function("fib")
    #result = wasm_fib(24)
    #print(result)  

Or did I miss a function to release/free the environment, runtime or module?