Get name of repository branch from Source Code Checkout task

[UserName GoesHere]

A Stage in a Bamboo Build Plan contains a Source Code Checkout task which checks out code from one of the Bitbucket repository branches that is linked to the Bamboo Build Plan. 

What specifically do I need to type or do in order to get the name of the repository branch that was checked out by the Source Code Checkout task? 

I have typed

`echo ${bamboo.planRepository.branchName}` 

in a subsequent Task inside the same Stage in the same Build Plan, but this just prints out the name of the default branchName for the entire Build Plan, which is different from the specific branch that was just checked out by the specific Source Code Checkout task about which I need information.

[Marcin Gardias]

`echo ${bamboo.planRepository.<position>.branchName}` 

<position> : position of the repository on plan's repository list (starting with 1 for default repo)

[UserName GoesHere]

You did not answer the question..  The line of code you gave only supplies information about the Plan-level links to repositories.  By contrast, this question asks how to determine which of those repositories is checked out by a specific Source Code Checkout task in the specific Job.  My question assumes you do not already know the answer.  Your reply assumes that the script already knows the answer because if the script knows the value of the <position> variable, then the script practically knows the rest of the answer. 

Can you suggest an approach that utilizes Job-and-Task-level variables?