'Constructs a dictionary of variable substitutions for Entitlements.plist.
Args:
bundle_identifier: string, value of CFBundleIdentifier from Info.plist
app_identifier_prefix: string, value for AppIdentifierPrefix
Returns:
Dictionary of substitutions to apply when generating Entitlements.plist.'

def _GetSubstitutions(self, bundle_identifier, app_identifier_prefix):

    return {'CFBundleIdentifier': bundle_identifier, 'AppIdentifierPrefix': app_identifier_prefix}
