def add_role_to_instance_profile(InstanceProfileName=None, RoleName=None):
    """
    Adds the specified IAM role to the specified instance profile. An instance profile can contain only one role, and this limit cannot be increased.
    For more information about roles, go to Working with Roles . For more information about instance profiles, go to About Instance Profiles .
    See also: AWS API Documentation
    
    Examples
    The following command adds the role named S3Access to the instance profile named Webserver:
    Expected Output:
    
    :example: response = client.add_role_to_instance_profile(
        InstanceProfileName='string',
        RoleName='string'
    )
    
    
    :type InstanceProfileName: string
    :param InstanceProfileName: [REQUIRED]
            The name of the instance profile to update.
            This parameter allows (per its regex pattern ) a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: =,.@-
            

    :type RoleName: string
    :param RoleName: [REQUIRED]
            The name of the role to add.
            This parameter allows (per its regex pattern ) a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: _+=,.@-
            

    :return: response = client.add_role_to_instance_profile(
        InstanceProfileName='Webserver',
        RoleName='S3Access',
    )
    
    print(response)
    
    
    """
    pass
