OptionalbroadcastThe data to write to the store.
A GraphQL document created using the gql template string tag from
graphql-tag with one or more fragments which will be used to determine
the shape of data to read. If you provide more than one fragment in this
document then you must also specify fragmentName to specify which
fragment is the root fragment.
OptionalfragmentThe name of the fragment in your GraphQL document to be used. If you do
not provide a fragmentName and there is only one fragment in your
fragment document then that fragment will be used.
OptionaloverwriteWhen true, ignore existing field data rather than merging it with incoming data.
Whether to notify query watchers.