external interface omits default parameter values

[xrchz]

Version Information

• vyper Version (output of vyper --version): 0.3.8+commit.8ebabc5c
• OS: GNU
• Python Version (output of python --version): Python 3.10.9

What's your issue about?

> cat bug1.vy
@external
def foo(x: uint256 = 3):
  pass

> vyper -f external_interface bug1.vy

# External Interfaces
interface Bug1:
    def foo(x: uint256): nonpayable

If you use the interface produced directly, you cannot call Bug1.foo(). But it works if you import bug1 as Bug1.

[charles-cooper]

probably related #3170