THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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An instance mixin is a mixin applied to a specific instance of a component. This can be done in the component template with the mixins attribute of the component tag. This is a comma-separated list of mixin names.
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Withing a given phase and class (@MixinAfter vs. mixin before), mixin ordering is determined by the ordering constraints specified in the mixin definitions. The constraint definitions follow the same conventions as ordered service configurations. How you specify the constraints depends on how the mixin is specified.
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