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#
# Configure permitted parameters for a devise action.
# This can be done in several ways on which this two are 
# the most used.
#
def configure_permitted_parameters
  
  # Usign a `do` block.
  devise_parameter_sanitizer.for(:sign_up) do |u|
    u.permit(:name, :heard_how,
      :email, :password, :password_confirmation)
  end
    
  # Appending parameter name to array.
  devise_parameter_sanitizer.for(:account_update) << :my_attribute
  
end