Parsing of multi-line strings fails

[davfre]

delta-kusto throws an error on multi-line strings surrounded by triple ```

Version: delta-kusto 0.15.1.128

.create-or-alter function myFunction() {
    let multi_line_string = ```
        The code below has a complex logic,
        as explained in this multi-line string
        
        E=MC^2
     ```;
    < function logic >
}

Stack trace: at DeltaKustoLib.CommandModel.CreateFunctionCommand.TrimFunctionSchemaBody(String body)
at DeltaKustoLib.CommandModel.CreateFunctionCommand.FromCode(SyntaxElement rootElement)
at DeltaKustoLib.CommandModel.CommandBase.CreateCommand(String script, KustoCode code, Boolean ignoreUnknownCommands)
at DeltaKustoLib.CommandModel.CommandBase.ParseAndCreateCommand(String script, Boolean ignoreUnknownCommands)
Exception encountered: DeltaKustoLib.DeltaException ; Issue parsing script
Stack trace: at DeltaKustoLib.CommandModel.CommandBase.ParseAndCreateCommand(String script, Boolean ignoreUnknownCommands)
at System.Linq.Enumerable.SelectEnumerableIterator2.MoveNext() at System.Linq.Enumerable.WhereEnumerableIterator1.ToArray()
at System.Collections.Immutable.ImmutableArray.CreateRangeT
at DeltaKustoLib.CommandModel.CommandBase.FromScript(String script, Boolean ignoreUnknownCommands)
at DeltaKustoIntegration.Kusto.KustoManagementGateway.DeltaKustoIntegration.Kusto.IKustoManagementGateway.ReverseEngineerDatabaseAsync(CancellationToken ct)
at DeltaKustoIntegration.Database.KustoDatabaseProvider.DeltaKustoIntegration.Database.IDatabaseProvider.RetrieveDatabaseAsync(CancellationToken ct)
at delta_kusto.DeltaOrchestration.RetrieveDatabaseAsync(IDatabaseProvider currentDbProvider, String db)
at delta_kusto.DeltaOrchestration.ProcessJobAsync(MainParameterization parameters, IKustoManagementGatewayFactory kustoGatewayFactory, IFileGateway localFileGateway, String jobName, JobParameterization job)
Exception encountered: System.InvalidOperationException ; Function body was expected to be surrounded by curly brace but isn't: {
let multi_line_string = ```