def put_key_policy(KeyId=None, PolicyName=None, Policy=None,
    BypassPolicyLockoutSafetyCheck=None):
    """
    Attaches a key policy to the specified customer master key (CMK).
    For more information about key policies, see Key Policies in the AWS Key Management Service Developer Guide .
    See also: AWS API Documentation
    
    Examples
    The following example attaches a key policy to the specified CMK.
    "Version": "2012-10-17",
    "Id": "custom-policy-2016-12-07",
    "Statement": [
    ]
    
    :example: response = client.put_key_policy(
        KeyId='string',
        PolicyName='string',
        Policy='string',
        BypassPolicyLockoutSafetyCheck=True|False
    )
    
    
    :type KeyId: string
    :param KeyId: [REQUIRED]
            A unique identifier for the CMK.
            Use the CMK's unique identifier or its Amazon Resource Name (ARN). For example:
            Unique ID: 1234abcd-12ab-34cd-56ef-1234567890ab
            ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
            

    :type PolicyName: string
    :param PolicyName: [REQUIRED]
            The name of the key policy.
            This value must be default .
            

    :type Policy: string
    :param Policy: [REQUIRED]
            The key policy to attach to the CMK.
            If you do not set BypassPolicyLockoutSafetyCheck to true, the policy must meet the following criteria:
            It must allow the principal that is making the PutKeyPolicy request to make a subsequent PutKeyPolicy request on the CMK. This reduces the likelihood that the CMK becomes unmanageable. For more information, refer to the scenario in the Default Key Policy section in the AWS Key Management Service Developer Guide .
            The principals that are specified in the key policy must exist and be visible to AWS KMS. When you create a new AWS principal (for example, an IAM user or role), you might need to enforce a delay before specifying the new principal in a key policy because the new principal might not immediately be visible to AWS KMS. For more information, see Changes that I make are not always immediately visible in the IAM User Guide .
            The policy size limit is 32 KiB (32768 bytes).
            

    :type BypassPolicyLockoutSafetyCheck: boolean
    :param BypassPolicyLockoutSafetyCheck: A flag to indicate whether to bypass the key policy lockout safety check.
            Warning
            Setting this value to true increases the likelihood that the CMK becomes unmanageable. Do not set this value to true indiscriminately.
            For more information, refer to the scenario in the Default Key Policy section in the AWS Key Management Service Developer Guide .
            Use this parameter only when you intend to prevent the principal that is making the request from making a subsequent PutKeyPolicy request on the CMK.
            The default value is false.
            

    :return: response = client.put_key_policy(
        # The identifier of the CMK to attach the key policy to. You can use the key ID or the Amazon Resource Name (ARN) of the CMK.
        KeyId='1234abcd-12ab-34cd-56ef-1234567890ab',
        # The key policy document.
        Policy='{
    
    
    """
    pass
