o 2h@sLddlZddlmZddlmZddlmZddlmZddlmZddlm Z ddlm Z dd lm Z dd lm Z dd lm Z dd lmZdd lmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlm Z ddlm!Z!dd lm"Z"dd!lm#Z#dd"lm$Z$dd#lm%Z%dd$lm&Z&dd%lm'Z'dd&lm(Z(dd'lm)Z)dd(lm*Z*dd)lm+Z+dd*lm,Z,dd+lm-Z-dd,lm.Z.dd-lm/Z/dd.lm0Z0dd/l1m2Z2heeeeeee e eeeeee eeeee eee ee'e-eeeee.e+e)e*e,e"e(e&e%e/e e$e0e!e#Z3d0d1e3DZ4e45eee'e'e)e)e+e+e*e*e,e,d2 ed3d4d5Z6ed6dnsr5) bceBCEkldKLDmaeMAEmseMSEmapeMAPEmsleMSLEzkeras.losses.serializecCs t|S)zSerializes loss function or `Loss` instance. Args: loss: A Keras `Loss` instance or a loss function. Returns: Loss configuration dictionary. )r/serialize_keras_object)lossr0r0r4 serializes rDzkeras.losses.deserializecCstj|t|dS)aZDeserializes a serialized loss class/function instance. Args: name: Loss configuration. custom_objects: Optional dictionary mapping names (strings) to custom objects (classes and functions) to be considered during deserialization. Returns: A Keras `Loss` instance or a loss function. )module_objectscustom_objects)r/deserialize_keras_objectALL_OBJECTS_DICT)namerFr0r0r4 deserializes  rJzkeras.losses.getcCsf|durdSt|trt|}nt|trt|d}n|}t|r,t|r*|}|St d|)aRetrieves a Keras loss as a `function`/`Loss` class instance. The `identifier` may be the string name of a loss function or `Loss` class. >>> loss = losses.get("categorical_crossentropy") >>> type(loss) >>> loss = losses.get("CategoricalCrossentropy") >>> type(loss) You can also specify `config` of the loss to this function by passing dict containing `class_name` and `config` as an identifier. Also note that the `class_name` must map to a `Loss` class >>> identifier = {"class_name": "CategoricalCrossentropy", ... "config": {"from_logits": True}} >>> loss = losses.get(identifier) >>> type(loss) Args: identifier: A loss identifier. One of None or string name of a loss function/class or loss configuration dictionary or a loss function or a loss class instance. Returns: A Keras loss as a `function`/ `Loss` class instance. Nz%Could not interpret loss identifier: ) isinstancedictrJstrrHgetcallableinspectisclass ValueError) identifierobjr0r0r4rNs    rN)N)9rPkeras.src.api_exportrkeras.src.losses.lossrkeras.src.losses.lossesrrrrrr r r r r rrrrrrrrrrrrrrrrrrr r!r"r#r$r%r&r'r(r)r*r+r,r-r.keras.src.savingr/ ALL_OBJECTSrHupdaterDrJrNr0r0r0r4s<                                                   !"#$%&()*+,-.0124579<