Represents a file asset variable defined in a creative template.
Use AssetCreativeTemplateVariableValue to specify the value for this variable when creating TemplateCreative from the TemplateCreative.
- Namespace
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                           CreativeTemplateVariable (inherited)
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                            Label that is displayed to users when creating TemplateCreative from the CreativeTemplate. This attribute is required and has a maximum length of 127 characters.  | 
                  
                        
                           
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                            Unique name used to identify the variable. This attribute is read-only and is assigned by Google, by deriving from label, when a creative template variable is created.  | 
                  
                        
                           
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                            A descriptive help text that is displayed to users along with the label. This attribute is required and has a maximum length of 255 characters.  | 
                  
                        
                           
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                           AssetCreativeTemplateVariable
                        
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                            A set of supported mime types. This set can be empty if there's no constraint, meaning files of any mime types are allowed. Enumerations 
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