tensorflow deeplearning colab :     I'm(beginner)working on cat and dog classifier .... 
    how to rectify these errors

    import tflearn
    from tflearn.layers.conv import conv_2d,maxpool_2d
    convnet=conv_2d(convent,32,5,activation='relu')
    convent=max_pool_2d(convent,5)

    ImportError                               
    <ipython-input-8-dc6c9fb9359a> in <module>()
      1 
      2 import tflearn
----> 3 from tflearn.layers.conv import conv_2d,maxpool_2d

     ImportError: cannot import name 'maxpool_2d'
     NameError                                 
     <ipython-input-64-4f4aec72da8c> in <module>()
----> 1 convnet=conv_2d(convent,32,5,activation='relu')
      2 convent=max_pool_2d(convent,5)
    NameError: name 'convent' is not defined
    NameError                                
    <ipython-input-4-be31c35783ac> in <module>()
----> 1 convnet = conv_2d(convnet, 64, 5, activation='relu')
      2 convent=max_pool_2d(convent,5)
    NameError: name 'conv_2d' is not defined