# E0001

def a(): return 1
def a(): return "a" # OK

print(a())

def g(): return f()

def f(): return 1
def f(): return "a" # E0001: Reassignment of a function referenced by other functions

# E0002

class C:
    def __init__(self): pass # OK
class C:
    def __init__(a): pass # ERR

# E0003

class C:
    __init__ = 1 # ERR