<human>:  format strings and named arguments in Python
<bot>: Here is some code to replace placeholders in string '{1} {ham} {0} {foo} {1}' with arguments `(10, 20, foo='bar', ham='spam')`

"""{1} {ham} {0} {foo} {1}""".format(10, 20, foo='bar', ham='spam')

#Warning: this code generation is experimental. Please inspect the code for any bugs before executing.