How to execute wasm method loaded into module through stream

[MutualExclusion]

As shown in the picture

[alexcrichton]

Sorry I'm not sure I fully understand the issue here. The error you're getting though seems to be related to how the module being instantiated has 0 imports but you're providing one (the [gen_pub_key] value). I'm not sure how that relates to a module through a stream? (I'm also not sure what a module through a stream is)