# Extending OpenAPI { #extending-openapi }

There are some cases where you might need to modify the generated OpenAPI schema.

In this section you will see how.

## The normal process { #the-normal-process }

The normal (default) process, is as follows.

A `FastAPI` application (instance) has an `.openapi()` method that is expected to return the OpenAPI schema.

			if err != nil {
				err = msgp.WrapError(err, "Key")
				return
			}
		case "Context":
			z.Context, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Context")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable

from sqlmodel import Field, Session, SQLModel, create_engine, select


class HeroBase(SQLModel):
    name: str = Field(index=True)
    age: Union[int, None] = Field(default=None, index=True)


class Hero(HeroBase, table=True):
    id: Union[int, None] = Field(default=None, primary_key=True)
    secret_name: str


class HeroPublic(HeroBase):
    id: int


class HeroCreate(HeroBase):
    secret_name: str

 */
public abstract class DcerpcMessage extends NdrObject implements DcerpcConstants {

    /**
     * Default constructor for DcerpcMessage.
     * Initializes the DCE/RPC message structure.
     */
    protected DcerpcMessage() {
        // Default constructor
    }

    /**
     * The packet type of this DCERPC message
     */
    protected int ptype = -1;
    /**

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")

{{- $statements_length := sub $statements_length 1 -}}
{
  "Version": "2012-10-17",
  "Statement": [
{{- range $i, $statement := .statements }}
    {
      "Effect": "{{ $statement.effect | default "Allow" }}",
      "Action": [
"{{ $statement.actions | join "\",\n\"" }}"
      ]{{ if $statement.resources }},
      "Resource": [
"{{ $statement.resources | join "\",\n\"" }}"
      ]{{ end }}

}} scheme=http {{- end }} connectToMinio $scheme {{ if .Values.buckets }} {{ $global := . }} # Create the buckets {{- range .Values.buckets }} createBucket {{ tpl .name $global }} {{ .policy | default "none" | quote }} {{ .purge | default false }} {{ .versioning | default false }} {{ .objectlocking | default false }} {{- end }} {{- end }} minio/templates/_helper_create_policy.txt #!/bin/sh set -e ; # Have script exit in the event of a failed command. {{- if .Values.configPathmc }} MC_CONFIG_DIR="{{...

						return
					}
				default:
					err = dc.Skip()
					if err != nil {
						err = msgp.WrapError(err, "Creds")
						return
					}
				}
			}
		case "Snowball":
			err = z.Snowball.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Snowball")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {

 *
 * Be advised that short/NetBIOS name usage is not supported with this authenticator. Always specify full FQDNs.
 * This can be a problem if using DFS in it's default configuration as they still return referrals in short form.
 * See <a href="https://support.microsoft.com/en-us/kb/244380">KB-244380</a> for compatible server configuration.

            assertEquals(0, SMBUtil.readInt4(buffer, 4)); // Default read length
            assertEquals(0L, SMBUtil.readInt8(buffer, 8)); // Default offset
            assertEquals(0, SMBUtil.readInt4(buffer, 32)); // Default minimum count
            assertEquals(0, SMBUtil.readInt4(buffer, 36)); // Default channel
            assertEquals(0, SMBUtil.readInt4(buffer, 40)); // Default remaining bytes
        }

        @Test