fix DeserializeFailed(Error("invalid length 9, expected fewer elements in array", line: 0, column: 0) (Issue #60)

[7jrxt42BxFZo4iAnN4CX]

Before:

  fn visit_seq<V>(self, mut seq: V) -> Result<TradingPeriods, V::Error>
  where
      V: SeqAccess<'de>,
  {
      let regular: Vec<PeriodInfo> = seq
          .next_element()?
          .ok_or_else(|| de::Error::invalid_length(0, &self))?;
      Ok(TradingPeriods {
          pre: None,
          regular: Some(vec![regular]),
          post: None,
      })
  }

After:

  fn visit_seq<V>(self, mut seq: V) -> Result<TradingPeriods, V::Error>
  where
  V: SeqAccess<'de>,
  {
  let mut regular: Vec<PeriodInfo> = Vec::new();
  
  println!("visit_seq");
  while let Ok(Some(mut e)) = seq.next_element::<Vec<PeriodInfo>>() {
	  regular.append(&mut e);
  }
  
  Ok(TradingPeriods { pre: None, regular: Some(vec![regular]), post: None })
  }

[xemwebe]

As in the other PR, please run cargo fmt on your code with standard 4 white space tabs.

[xemwebe]

Please remove this line.

[7jrxt42BxFZo4iAnN4CX]

Done

[7jrxt42BxFZo4iAnN4CX]

I disabled my rustfmt, but for some reason the imports are separate.