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                REST API
            
            
            
            
            
          
Setting Up the Client
    Follow these steps to set up the client:
- Load the JavaScript library.
 - Initialize the accept object with capture context.
 - Initialize the unified payment object with optional parameters.
 - Show the button list or payment acceptance screen or both.
 
The response to these interactions is a transient token that you use to complete payments
            securely.