Mdb Tooltip with ng Template

Expected behavior

Passing parameters/variables to a mdbtooltip template

Actual behavior

trying to pass a parameter via context to the tooltip template results ina compilation error

Resources (screenshots, code snippets etc.)

I am trying to pass a parameter (array of errors) to a mdbtooltip template but it results in the following compilation error:

Failed to compile.

Template parse errors: Parser Error: Binding expression cannot contain chained expression at column 26 in [validationErrorTemplate; context: adamsId.errors]

Here is a code snippet which explains what i want to achieve:

<input [(ngModel)]="model.adamsId" #adamsId="ngModel"
     id="inputAdamsId" name="adamsId"
     mdbInput type="text" class="form-control" />
<label for="inputAdamsId">Adams-ID</label>
<mdb-error class="custom-error-message" *ngIf="adamsId.invalid" [mdbTooltip]="validationErrorTemplate; context: adamsId.errors" placement="bottom">
{{adamsId.errors['adamsId0']}}
</mdb-error>


<ng-template #validationErrorTemplate let-validationErrors="errors">
  <span *ngfor="let error of errors| keyvalue">
    {{error.value}}
  </span>
</ng-template>

Can you explain how I can add parameters to a ng-tempalte?

Thanks in advance.