Context component:

import re

from enum import Enum

from typing import Optional

from typing import Any, Optional

# Enumeration classes are redundant with gRPC classes, but gRPC does not provide a programmatical method to retrieve

# the values it expects from strings containing the desired value symbol or its integer value, so a kind of mapping is

# required. Besides, ORM Models expect Enum classes in EnumeratedFields; we create specific and conveniently defined

# Enum classes to serve both purposes.

def grpc_to_enum(grpc_enum_class, orm_enum_class : Enum, grpc_enum_value, grpc_enum_prefix : Optional[str] = None):

def grpc_to_enum(

    grpc_enum_class, orm_enum_class : Enum, grpc_enum_value, grpc_enum_prefix : Optional[str] = None,

    fail_if_not_found : bool = False

) -> Optional[Any]:

    enum_name = grpc_enum_class.Name(grpc_enum_value)

    _orig_enum_name = enum_name

    _orig_grpc_enum_prefix = grpc_enum_prefix

    if grpc_enum_prefix is None:

        grpc_enum_prefix = orm_enum_class.__name__.upper()

        #grpc_enum_prefix = re.sub(r'^ORM_(.+)$', r'\1', grpc_enum_prefix)

        enum_name = enum_name.replace(grpc_enum_prefix, '')

    orm_enum_value = orm_enum_class._member_map_.get(enum_name)

    if orm_enum_value is None and fail_if_not_found:

        MSG = 'Unable to map gRPC Enum Value ({:s} / {:s}) to ORM Enum Value; grpc_enum_prefix={:s}'

        raise Exception(MSG.format(str(grpc_enum_value), str(_orig_enum_name), str(_orig_grpc_enum_prefix)))

    return orm_enum_value