code: def map_package(shutit_pexpect_session, package, install_type):
  	
  	if package in PACKAGE_MAP.keys():
  		for itype in PACKAGE_MAP[package].keys():
  			if itype == install_type:
  				ret = PACKAGE_MAP[package][install_type]
  				if isinstance(ret,str):
  					return ret
  				if callable(ret):
  					ret(shutit_pexpect_session)
  					return ''
  	# Otherwise, simply return package
  	return package
docs: If package mapping exists, then return it, else return package.