Struct Field 

pub struct Field {
    pub wire: &'static str,
    pub kind: K,
    pub enums: &'static [&'static str],
    pub min_len: Option<u64>,
    pub min_val: Option<i64>,
    pub list_min: Option<u64>,
    pub elem_kind: K,
    pub is_union: bool,
    pub children: &'static [Field],
}

A @required output member (recursively for structures / list elements), enough for the engine to synthesise a shape-valid value.

Fields

wire: &'static str

kind: K

enums: &'static [&'static str]

min_len: Option<u64>

min_val: Option<i64>

list_min: Option<u64>

For a list member, its @length min (>=1 means at least one element).

elem_kind: K

For a list member, the element kind (children holds the element’s required members when it is a structure).

is_union: bool

Whether this member is a union (synthesise exactly one member).

children: &'static [Field]

Required members of a structure member, the single first member of a union, or the required members of a list element structure.