AttributeError: module 'keras.optimizers' has no attribute 'Adam'
There are ways to solve your problem as you are using keras 2.6 and tensorflow too:

use (from keras.optimizer_v2.adam import Adam as Adam) but go through the function documentation once to specify your learning rate and beta values
you can also use (Adam = keras.optimizers.Adam).
(import tensorflow as tf) then (Adam = tf.keras.optimizers.Adam)

Use the form that is useful for the environment you set
When i am using "optimizer = keras.optimizers.Adam(learning_rate)" i am getting this error
"AttributeError: module 'keras.optimizers' has no attribute 'Adam". I am using python3.8 keras 2.6 and backend tensorflow 1.13.2 for running the program. Please help to resolve !