Could u help in making function headers and type contracts in the following? def aragorn(x: int, y: str, z: float) -> str: def gandalf(x: list) -> list: def elrond(x: list, y: bool) -> bool: If the following code runs without errors, what is a header and type contract for treebeard?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Could u help in making function headers and type contracts in the following?

def aragorn(x: int, y: str, z: float) ->

str: def gandalf(x: list) ->

list: def elrond(x: list, y: bool) ->

bool: If the following code runs without errors, what is a header and type contract for treebeard?

a = aragorn(11, 'good', 2.0)

b = treebeard(5, gandalf([1, 2, 3]), a)

print(elrond(gandalf([4, 5]), b))

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