<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def render_cvmfs_pvc(cvmfs_volume):
 """Render REANA_CVMFS_PVC_TEMPLATE."""

    name = CVMFS_REPOSITORIES[cvmfs_volume]
    rendered_template = dict(REANA_CVMFS_PVC_TEMPLATE)
    rendered_template['metadata']['name'] = 'csi-cvmfs-{}-pvc'.format(name)
    rendered_template['spec']['storageClassName'] = "csi-cvmfs-{}".format(name)
    return rendered_template