Then, when you create an instance of that `Settings` class (in this case, in the `settings` object), Pydantic will read the environment variables in a case-insensitive way, so, an upper-case variable `APP_NAME` will still be read for the attribute `app_name`.

}

// parseVersionInterval parses a single version like "v1.2.3" or a closed
// interval like "[v1.2.3,v1.4.5]". Note that a single version has the same
// representation as an interval with equal upper and lower bounds: both
// Low and High are set.
func parseVersionInterval(arg string) (modfile.VersionInterval, error) {
	if !strings.HasPrefix(arg, "[") {
		if !allowedVersionArg(arg) {

   * contents, such as {@code "[1..100]}"}.
   *
   * @throws IllegalArgumentException if neither this range nor the domain has a lower bound, or if
   *     neither has an upper bound
   */
  public ImmutableSortedSet<C> asSet(DiscreteDomain<C> domain) {
    checkNotNull(domain);
    if (isEmpty()) {
      return ImmutableSortedSet.of();
    }

	ctxt := Default
	all, err := listStdPkgs(ctxt.GOROOT)
	if err != nil {
		t.Fatal(err)
	}

	for _, pkgname := range all {
		if strings.ToLower(pkgname) != pkgname {
			t.Errorf("package %q should not use upper-case path", pkgname)
		}
	}
}

// TestFindImports tests that findImports works.  See #43249.
func TestFindImports(t *testing.T) {
	imports, err := findImports("go/build")
	if err != nil {

// All other values are represented as an IEEE 754 binary representation of NaN with bits 0-31 used as
// an ID and bits 32-34 used to differentiate between string, symbol, function and object.
type ref uint64

// nanHead are the upper 32 bits of a ref which are set if the value is not encoded as an IEEE 754 number (see above).
const nanHead = 0x7FF80000

// Value represents a JavaScript value. The zero value is the JavaScript value "undefined".

    InetAddress mapped = InetAddresses.forString(mappedStr);
    assertThat(mapped).isNotInstanceOf(Inet6Address.class);
    assertEquals(InetAddress.getByName("192.168.0.1"), mapped);

    // check upper case
    mappedStr = "::FFFF:192.168.0.1";
    assertTrue(InetAddresses.isMappedIPv4Address(mappedStr));
    mapped = InetAddresses.forString(mappedStr);
    assertThat(mapped).isNotInstanceOf(Inet6Address.class);

	// p = (x1-x0)*(y0-y1) == x1*y0 - x1*y1 - x0*y0 + x0*y1 for s > 0
	// p = (x0-x1)*(y0-y1) == x0*y0 - x0*y1 - x1*y0 + x1*y1 for s < 0
	p := z[n*3:]
	karatsuba(p, xd, yd)

	// save original z2:z0
	// (ok to use upper half of z since we're done recurring)
	r := z[n*4:]
	copy(r, z[:n*2])

	// add up all partial products
	//
	//   2*n     n     0
	// z = [ z2  | z0  ]
	//   +    [ z0  ]
	//   +    [ z2  ]

// This distinction is required because an error is indicated by returning -1,
// and we need to know whether to check 32 or 64 bits of the result.
// (Some libc functions that return 32 bits put junk in the upper 32 bits of AX.)

// golang.org/x/sys linknames syscall_syscall
// (in addition to standard package syscall).
// Do not remove or change the type signature.
//
//go:linkname syscall_syscall syscall.syscall
//go:nosplit

// license that can be found in the LICENSE file.

package main

import "strings"

// Notes:
//  - Less-than-64-bit integer types live in the low portion of registers.
//    The upper portion is junk.
//  - Boolean types are zero or 1; stored in a byte, with upper bytes of the register containing junk.
//  - *const instructions may use a constant larger than the instruction can encode.

	VXOR	IN0, KEY, IN0                    // vxor 1,1,3
	STXVD2X	IN0, (R0+OUTENC)
	STXVD2X	IN0, (R0+OUTDEC)

	RET

l192:
	LXSDX	(INP+R0), IN1                    // Load next 8 bytes into upper half of VSR.
	XXBRD_ON_LE(IN1, IN1)                    // and convert to BE ordering on LE hosts.
	MOVD	$4, CNT                          // li 7,4
	STXVD2X	IN0, (R0+OUTENC)
	STXVD2X	IN0, (R0+OUTDEC)