Azure DevOps API - Create a pipeline from a YAML file located in a specific branch source

Question

I used this JSON to create my pipeline :

$pipelineJSON = @{

    configuration = @{

        variables = @{

            example = @{

                value = "to be defined"

            }

        }

        path = "azure-pipelines.yml"

        repository = @{

            id = "myRepoId"

            name = "myRepoName"

            type = "azureReposGit"

        }

        type = "yaml"

    }

    name = "pipeline-test"

    folder= "\\"

} | ConvertTo-Json

$request = 'https://dev.azure.com/' + $organization + '/' + $projectName + '/_apis/pipelines?api-version=6.0-preview.1'

$responseCreatePipeline = Invoke-RestMethod $request -Method 'POST' -Headers $headers -Body $pipelineJSON -ContentType "application/json"

 I want to create this pipeline from a YAML file located in a different branch. Does anyone know how to do it?