AI-generated Key Takeaways
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A single operation can create or remove an asset group signal.
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Policy violations can be exempted using
exempt_policy_violation_keys, though not all violations are exemptable. - 
          
Resources with exempted policy violations will not serve initially but may become eligible later.
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The
operationfield specifies the mutate operation, supportingcreateorremove. - 
          
For a
removeoperation, the resource name of the asset group signal is required in a specific format. 
A single operation (create, remove) on an asset group signal.
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                   Optional. The list of policy violation keys that should not cause a PolicyViolationError to be reported. Not all policy violations are exemptable, refer to the is_exemptible field in the returned PolicyViolationError. Resources violating these polices will be saved, but will not be eligible to serve. They may begin serving at a later time due to a change in policies, re-review of the resource, or a change in advertiser certificates.  | 
              
Union field 
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                   Create operation: No resource name is expected for the new asset group signal.  | 
              
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 Remove operation: A resource name for the removed asset group signal is expected, in this format:   |