fourq 0.1.6

rust bind for the FourQlib that is a fourq curve implementation
Documentation 
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import ray

ray.init(logging_level="debug")

# @ray.remote
# class Actor:
#     def show_namespace(self):
#         print("namespace: ", ray.get_runtime_context().get_actor_namespace())

# # Create an actor with specified namespace.
# actor = Actor.options(
#     name="my_actor", 
#     namespace="actor_namespace", # <- specify namespace here
#     lifetime="detached"
# ).remote()
# ray.get(actor.show_namespace.remote())

# The Output
# >>> (Actor pid=30522) namespace:  540bbea1-bc1c-4ec3-8447-a858958151ce


import sys
import time

@ray.remote(max_restarts=1,max_task_retries=1)
class A:
    def __init__(self):
        print(f'initing')
        time.sleep(2)

    def kill(self):
        sys.exit(-1)

    def ping(self, msg):
        return f"hello {msg}"
    
a = A.remote()
print(ray.get(a.ping.remote("ok")))
print(a.kill.options(max_task_retries=0).remote())

# raises RayActorError
# print(ray.get(a.ping.remote("no retries")))
# raises RayActorError
print(ray.get(a.ping.options(max_task_retries=1).remote("task retries")))
# ok
# print(ray.get(a.ping.options(max_task_retries=-1).remote("task retries")))
# max_task_retries = 3 raises, = 4 is ok