Add information about ResourceGroup attributes
Add info that ResourceGroup get_attr returns list of attributes, if there's no resource_index. Change-Id: I184bb142715b29eb770cb88bd60586576ac7bc8f Partial-bug: #1561157
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@ -44,7 +44,9 @@ class ResourceGroup(stack_resource.StackResource):
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for a single resource in the group, synthetic attributes of the form
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`resource.{resource index}.{attribute name}` can be used. The resource ID
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of a particular resource in the group can be obtained via the synthetic
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attribute `resource.{resource index}`.
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attribute `resource.{resource index}`. Note, that if you get attribute
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without `{resource index}`, e.g. `[resource, {attribute_name}]`, you'll get
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a list of this attribute's value for all resources in group.
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While each resource in the group will be identically configured, this
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resource does allow for some index-based customization of the properties
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