tf.keras.backend.get_value

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tf.keras.backend.get_value(
    x
)

K = tf.keras.backend  # Common keras convention
v = K.variable(1.)

# reassign
K.set_value(v, 2.)
print(K.get_value(v))
2.0

# increment
K.set_value(v, K.get_value(v) + 1)
print(K.get_value(v))
3.0

v = tf.Variable(1.)

_ = v.assign(2.)
print(v.numpy())
2.0

_ = v.assign_add(1.)
print(v.numpy())
3.0