rlmesh_remote_vector_env_single_action_space
Env construction connects; Model construction only validates. Remote I/O is exclusive, while immutable accessors/cancellation may overlap any call. Accessor pointers remain borrowed until free, including after close.
const RLMeshSpace* rlmesh_remote_vector_env_single_action_space(
const RLMeshRemoteVectorEnv* remote_vector_env
)