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import os
from typing import Type
import onnxruntime as ort
from .sessions import sessions_class
from .sessions.base import BaseSession
from .sessions.u2net import U2netSession
def new_session(
model_name: str = "u2net", providers=None, *args, **kwargs
) -> BaseSession:
"""
Create a new session object based on the specified model name.
This function searches for the session class based on the model name in the 'sessions_class' list.
It then creates an instance of the session class with the provided arguments.
The 'sess_opts' object is created using the 'ort.SessionOptions()' constructor.
If the 'OMP_NUM_THREADS' environment variable is set, the 'inter_op_num_threads' option of 'sess_opts' is set to its value.
Parameters:
model_name (str): The name of the model.
providers: The providers for the session.
*args: Additional positional arguments.
**kwargs: Additional keyword arguments.
Returns:
BaseSession: The created session object.
"""
session_class: Type[BaseSession] = U2netSession
for sc in sessions_class:
if sc.name() == model_name:
session_class = sc
break
sess_opts = ort.SessionOptions()
if "OMP_NUM_THREADS" in os.environ:
sess_opts.inter_op_num_threads = int(os.environ["OMP_NUM_THREADS"])
sess_opts.intra_op_num_threads = int(os.environ["OMP_NUM_THREADS"])
return session_class(model_name, sess_opts, providers, *args, **kwargs)
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