Publicly accessible method for determining the current backend.
Compat aliases for migration
See Migration guide for more details.
tf.compat.v1.keras.backend.backend, tf.compat.v2.keras.backend.backend
tf.compat.v1.keras.backend.backend
tf.compat.v2.keras.backend.backend
tf.keras.backend.backend()
Only exists for API compatibility with multi-backend Keras.
The string "tensorflow".