def createHeaders(X_APIKEY, Content_Type="application/json"):
    """
    Create headers for API calls within this package

    REQUIRED ARGUMENTS
    :param X_APIKEY: String - Authentication key for the API

    OPTIONAL ARGUMENTS
    :param Content_Type: String - Default to "application/json"

    :return: JSON Headers for API call
    """
    headers = {
        'Content-Type': Content_Type,
        'X-APIKEY': X_APIKEY
    }

    return headers