Can someone guide me on how to write 3 functions for the unitests in python?

Import unittest class TestFunctions(unittest.TestCase): swapcomma "cat", "bird", "bird" J)) '"James "i, "Arron")])) def se wap_comma_dot( self) : sertEqua1 ( "23.145, eel' , self. assertEqua1 ( " 23 , 145 .00" , swap with self ( 32 " ) comma "23, 145 .ee")) _ dot( "23.145, eel')) def self. assertEquaa(' self. assertEqua1 def ertEqua1(" se forrqa self. assertEqua1( 'I "dog" , james "dog" , Illi III iij