HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidMaxParts: {
		Code:           "InvalidArgument",
		Description:    "Part number must be an integer between 1 and 10000, inclusive",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidPartNumberMarker: {
		Code:           "InvalidArgument",
		Description:    "Argument partNumberMarker must be an integer.",

Webargs é uma ferramenta feita para fornecer isso no topo de vários frameworks, inclusive Flask.

Ele utiliza Marshmallow por baixo para a validação de dados. E foi criado pelos mesmos desenvolvedores.

É uma grande ferramenta e eu também a utilizei bastante, antes de ter o **FastAPI**.

	// its expected to fail with error message "InvalidArgument".
	verifyError(c, response4, "InvalidArgument", "Part number must be an integer between 1 and 10000, inclusive", http.StatusBadRequest)
}

// TestObjectValidMD5 - First uploads an object with a valid Content-Md5 header and verifies the status,
// then upload an object in a wrong Content-Md5 and validate the error response.

  It changes the dual-stack API wrt Service from a single ipFamily field to 3
  fields: ipFamilyPolicy (SingleStack, PreferDualStack, RequireDualStack),
  ipFamilies (a list of families assigned), and clusterIPs (inclusive of
  clusterIP).  Most users do not need to set anything at all, defaulting will
  handle it for them.  Services are single-stack unless the user asks for

the digits in the corresponding base.
</p>

<p>
Although these representations all result in an integer, they have
different valid ranges.  Octal escapes must represent a value between
0 and 255 inclusive.  Hexadecimal escapes satisfy this condition
by construction. The escapes <code>\u</code> and <code>\U</code>
represent Unicode code points so within them some values are illegal,