method MongoEntityManager.prototype.findOneRe-exportimport { MongoEntityManager } from "https://deno.land/x/typeorm@v0.2.23-rc10/src/index.ts"; findOne<Entity>(entityClassOrName: ObjectType<Entity> | EntitySchema<Entity> | string,optionsOrConditions?: | string | string[] | number | number[] | Date | Date[] | ObjectID | ObjectID[] | FindOneOptions<Entity> | DeepPartial<Entity>,maybeOptions?: FindOneOptions<Entity>,): Promise<Entity | undefined>Finds first entity that matches given conditions and/or find options. Type ParametersEntityParametersentityClassOrName: ObjectType<Entity> | EntitySchema<Entity> | stringoptionaloptionsOrConditions: | string | string[] | number | number[] | Date | Date[] | ObjectID | ObjectID[] | FindOneOptions<Entity> | DeepPartial<Entity>optionalmaybeOptions: FindOneOptions<Entity>ReturnsPromise<Entity | undefined>