# Subdependências

Você pode criar dependências que possuem **subdependências**.

Elas podem ter o nível de **profundidade** que você achar necessário.

O **FastAPI** se encarrega de resolver essas dependências.

## Primeira dependência "injetável"

Você pode criar uma primeira dependência (injetável) dessa forma:

//// tab | Python 3.10+

```Python hl_lines="8-9"
{!> ../../docs_src/dependencies/tutorial005_an_py310.py!}
```

  private void advance() throws IOException {
    close();
    if (it.hasNext()) {
      current = it.next().openStream();
    }
  }

  @Override
  public int read(char[] cbuf, int off, int len) throws IOException {
    checkNotNull(cbuf);
    if (current == null) {
      return -1;
    }
    int result = current.read(cbuf, off, len);
    if (result == -1) {
      advance();

      AbstractTensorInterface* t) = 0;
  // Copy the handle to another device.
  virtual ImmediateExecutionTensorHandle* CopyTensorHandleToDevice(
      ImmediateExecutionTensorHandle* handle, const char* device_name,
      absl::Status* status) = 0;

  // Create an operation to perform op execution
  ImmediateExecutionOperation* CreateOperation() override = 0;

            final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
            if (StringUtil.isNotBlank(includedPaths)) {
                final StringBuilder buf = new StringBuilder(100);
                char split = 0;
                for (final String path : includedPaths.split("\n")) {
                    if (split == 0) {
                        split = '|';
                    } else {

        StringItem stringPart;

        Item digitPart;

        CombinationItem(String value) {
            int index = 0;
            for (int i = 0; i < value.length(); i++) {
                char c = value.charAt(i);
                if (Character.isDigit(c)) {
                    index = i;
                    break;
                }
            }

  public Hasher putLong(long l) {
    for (int i = 0; i < 64; i += 8) {
      putByte((byte) (l >>> i));
    }
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putChar(char c) {
    putByte((byte) c);
    putByte((byte) (c >>> 8));
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public <T extends @Nullable Object> Hasher putObject(

                    || PRIORITY_ELEMENT.equals(qName)) {
                buf = new StringBuilder();
            }
        }

        @Override
        public void characters(final char[] ch, final int offset, final int length) {
            if (buf != null) {
                buf.append(new String(ch, offset, length));
            }
        }

        @Override

    StringBuilder result = new StringBuilder();

    @Override
    public Appendable append(CharSequence csq) {
      result.append(csq);
      return this;
    }

    @Override
    public Appendable append(char c) {
      result.append(c);
      return this;
    }

    @Override
    public Appendable append(CharSequence csq, int start, int end) {
      result.append(csq, start, end);
      return this;
    }

| `minio_node_io_read_bytes`                 | Total bytes read by the process from the underlying storage system, /proc/[pid]/io read_bytes.                  |
| `minio_node_io_wchar_bytes`                | Total bytes written by the process to the underlying storage system including page cache, /proc/[pid]/io wchar. |

  @Override
  @CanIgnoreReturnValue
  public Hasher putLong(long l) {
    scratch.putLong(l);
    return update(Longs.BYTES);
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putChar(char c) {
    scratch.putChar(c);
    return update(Chars.BYTES);
  }