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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 load_validator(schema_path, schema):
 """Create a JSON schema validator for the given schema. Args: schema_path: The filename of the JSON schema. schema: A Python object representation of the same schema. Returns: An instance of Draft4Validator. """

    # Get correct prefix based on OS
    if os.name == 'nt':
        file_prefix = 'file:///'
    else:
        file_prefix = 'file:'

    resolver = RefResolver(file_prefix + schema_path.replace("\\", "/"), schema)
    validator = Draft4Validator(schema, resolver=resolver)

    return validator