///

### Paso 2: crea un "instance" de `FastAPI`

```Python hl_lines="3"
{!../../docs_src/first_steps/tutorial001.py!}
```

Aquí la variable `app` será un instance de la clase `FastAPI`.

Este será el punto de interacción principal para crear todo tu API.

Esta `app` es la misma a la que nos referimos cuando usamos el comando de `uvicorn`:

                || (getExecutePhase() != null && !getExecutePhase().isEmpty());
    }

    public boolean isV4Api() {
        return v4Api;
    }

    /**
     * Creates a shallow copy of this mojo descriptor.
     */
    @Override
    public MojoDescriptor clone() {
        try {
            return (MojoDescriptor) super.clone();
        } catch (CloneNotSupportedException e) {

  TF_Output add_inputs[2] = {{l, 0}, {r, 0}};
  TF_AddInputList(desc, add_inputs, 2);
  TF_AddControlInput(desc, ctrl_op);
  return TF_FinishOperation(desc, s);
}

// If `op_device` is non-empty, set the created op on that device.
void BinaryOpHelper(const char* op_name, TF_Operation* l, TF_Operation* r,
                    TF_Graph* graph, TF_Status* s, const char* name,

        final IndexResponse response = builder.execute().actionGet(indexTimeout);
        esEntity.asDocMeta().id(response.getId());
        return response.getResult() == Result.CREATED ? 1 : 0;
    }

    protected IndexRequestBuilder createInsertRequest(final EsAbstractEntity esEntity) {
        final IndexRequestBuilder builder = client.prepareIndex().setIndex(asEsIndex()).setSource(toSource(esEntity));

        final IndexResponse response = builder.execute().actionGet(indexTimeout);
        esEntity.asDocMeta().id(response.getId());
        return response.getResult() == Result.CREATED ? 1 : 0;
    }

    protected IndexRequestBuilder createInsertRequest(final EsAbstractEntity esEntity) {
        final IndexRequestBuilder builder = client.prepareIndex().setIndex(asEsIndex()).setSource(toSource(esEntity));

          assertThat(expected.message!!).startsWith("Certificate pinning failure!")
        }
        else -> throw expected
      }
    }
  }

  /**
   * Not checking the CA bit created a vulnerability in old OkHttp releases. It is exploited by
   * triggering different chains to be discovered by the TLS engine and our chain cleaner. In this
   * attack there's several different chains.
   *
   *

display: block;\n  }\n}\n","// Contents\n//\n// Navbar\n// Navbar brand\n// Navbar nav\n// Navbar text\n// Navbar divider\n// Responsive navbar\n// Navbar position\n// Navbar themes\n\n\n// Navbar\n//\n// Provide a static navbar from which we expand to create full-width, fixed, and\n// other navbar variations.\n\n.navbar {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap; // allow us to do the line break for collapsing content\n  align-items: center;\n  justify-content: space-between; // space...

          (sink.finished || sink.closed) &&
          hasResponseHeaders
        ) {
          return false
        }
        return true
      }
    }

  /** Returns true if this stream was created by this peer. */
  val isLocallyInitiated: Boolean
    get() {
      val streamIsClient = (id and 1) == 1
      return connection.client == streamIsClient
    }

  /**

   * first permutation will be in ascending order, and the last will be in descending order.
   *
   * <p>Elements that compare equal are considered equal and no new permutations are created by
   * swapping them.
   *
   * <p>An empty iterable has only one permutation, which is an empty list.
   *
   * @param elements the original iterable whose elements have to be permuted.

        private String propertyValue;

        private boolean maybeTyped;

        /** Stores if the properties are typed or not */
        Boolean typed;

        /**
         * Creates a new instance of <code>PropertiesReader</code> and sets
         * the underlaying reader and the list delimiter.
         *
         * @param reader the reader
         */