Missing Annotations in metadata output

[madansr7]

When compared to annotations in from v1.0 metadata, the annotations in the apidoctor's output is missing a number of annotations.
For e.g. the following annotations does not generated via apidoctor but exists in the v1.0 metadata.

<Annotations Target="microsoft.graph.user/events">
    <Annotation Term="Org.OData.Capabilities.V1.ChangeTracking">
        <Record>
            <PropertyValue Property="Supported" Bool="false" />
        </Record>
    </Annotation>
    <Annotation Term="Org.OData.Capabilities.V1.ExpandRestrictions">
        <Record>
            <PropertyValue Property="Expandable" Bool="false" />
        </Record>
    </Annotation>
    <Annotation Term="Org.OData.Capabilities.V1.SearchRestrictions">
        <Record>
            <PropertyValue Property="Searchable" Bool="false" />
        </Record>
    </Annotation>
</Annotations>