if paddinglen == 0 {
			seq = append(seq, fmt.Sprintf("%d", i))
		} else {
			seq = append(seq, fmt.Sprintf(fmt.Sprintf("%%0%dd", paddinglen), i))
		}
	}
	return seq
}

// Test tests parses endpoint ellipses input pattern.
func TestParseEndpointSet(t *testing.T) {
	testCases := []struct {
		arg     string
		es      endpointSet
		success bool
	}{
		// Tests invalid inputs.
		{
			"...",

import org.apache.maven.api.services.MessageBuilderFactory;

import static java.util.Objects.requireNonNull;

/**
 * Represents a request to parse Maven command-line arguments.
 * This interface encapsulates all the necessary information needed to parse
 * Maven commands and arguments into an {@link InvokerRequest}.
 *
 * @since 4.0.0
 */
@Immutable
@Experimental
public interface ParserRequest {
    /**

            throw new DictionaryException("Failed to parse " + path, e);
        }
    }

    /**
     * Reloads the stopwords dictionary from an input stream.
     *
     * @param updater An optional updater to apply changes.
     * @param in      The input stream to read the dictionary from.
     * @throws DictionaryException if the input stream cannot be parsed.
     */

Then we use the request directly, and extract the body as `bytes`. This means that FastAPI won't even try to parse the request payload as JSON.

And then in our code, we parse that YAML content directly, and then we are again using the same Pydantic model to validate the YAML content:

//// tab | Pydantic v2

TF_CAPI_EXPORT unsigned char TF_SetXlaEnableLazyCompilation(
    unsigned char enable);
TF_CAPI_EXPORT unsigned char TF_SetTfXlaCpuGlobalJit(unsigned char enable);

// Sets XLA's auto jit mode according to the specified string, which is parsed
// as if passed in XLA_FLAGS. This has global effect.
TF_CAPI_EXPORT void TF_SetXlaAutoJitMode(const char* mode);

// Returns whether the single GPU or general XLA auto jit optimizations are

            throw new DictionaryException("Failed to parse " + path, e);
        }
    }

    /**
     * Reloads the stemmer override dictionary from an input stream.
     *
     * @param updater An optional updater to apply changes.
     * @param in      The input stream to read the dictionary from.
     * @throws DictionaryException if the input stream cannot be parsed.
     */

import java.io.DataInputStream;
import java.io.IOException;
import java.util.Date;

import jcifs.smb.SID;

/**
 * Contains user logon information from a PAC (Privilege Attribute Certificate).
 * This class parses and provides access to user authentication and authorization
 * data from Kerberos tickets, including user identity, group memberships, and
 * logon metadata.
 */
public class PacLogonInfo {

    private Date logonTime;

	k, err := crypto.SSECopy.ParseHTTP(h)
	return k[:], err
}

// ParseSSECustomerRequest parses the SSE-C header fields of the provided request.
// It returns the client provided key on success.
func ParseSSECustomerRequest(r *http.Request) (key []byte, err error) {
	return ParseSSECustomerHeader(r.Header)
}

// ParseSSECustomerHeader parses the SSE-C header fields and returns
// the client provided key on success.

		return true
	}
	return false // in progress or completed but expired
}

// parseRestoreObjStatus parses restoreHdr from AmzRestore header. If the value is valid it returns a
// restoreObjStatus value with the status and expiry (if any). Otherwise returns
// the empty value and an error indicating the parse failure.
func parseRestoreObjStatus(restoreHdr string) (restoreObjStatus, error) {

        writeTestFile("invalid => "); // Invalid format

        try {
            charMappingFile.reload(null);
            // If no exception, the file might have been parsed with warnings
            assertTrue(true);
        } catch (Exception e) {
            // Expected for invalid format
            assertTrue(true);
        }
    }