Unclear how the command az synapse linked-service create works with a plain json file in a .azcli file in visual studio code

**Related command**
#az synapse linked-service create --workspace-name $synapseWorkspaceName --name "$synapseWorkspaceName-WorkspaceDefaultStorage" --file ????

**Is your feature request related to a problem? Please describe.**
Would be nicer to have a JSON example file is not working. On the internet no example. So I guess nobody is using it because it is too too complicated for incidental use.

**Describe the solution you'd like**
Simpler syntax or better example from a .azcli file where the json is in and the parameters can be modified on the fly so that 1 file holds

**Describe alternatives you've considered**
add manually ....:-)