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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def kms_key_policy():
 """ Creates a key policy for use of a KMS Key. """


    statements = []
    statements.extend(kms_key_root_statements())

    return Policy(
        Version="2012-10-17",
        Id="root-account-access",
        Statement=statements
    )