A Google ads experiment for users to experiment changes on multiple campaigns, compare the performance, and apply the effective changes.
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 Immutable. The resource name of the experiment arm. Experiment arm resource names have the form: 
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 Immutable. The experiment to which the ExperimentArm belongs.  | 
              
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 Required. The name of the experiment arm. It must have a minimum length of 1 and maximum length of 1024. It must be unique under an experiment.  | 
              
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 Whether this arm is a control arm. A control arm is the arm against which the other arms are compared.  | 
              
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 Traffic split of the trial arm. The value should be between 1 and 100 and must total 100 between the two trial arms.  | 
              
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 List of campaigns in the trial arm. The max length is one.  | 
              
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 Output only. The in design campaigns in the treatment experiment arm.  |