julia> import Pkg; Pkg.add("MetaPhylo");

julia> using MetaPhylo

julia> tree = parse_newick("((A:0.1,B:0.2)100:0.3,((C:0.4,D:0.5)77:0.6,E:0.7)98:0.8,F:0.9);", MetaPhylo.Tree{Int, UnRooted, ReRootable})
MetaPhylo.Tree with 6 leaves.
    Rooted: false
    Rerootable: true

julia> print_tree(tree)
1: [root] 
├─ 2: [value:100.0, length:0.3] 
│  ├─ 3: [length:0.1] label:"A"
│  └─ 4: [length:0.2] label:"B"
├─ 5: [value:98.0, length:0.8] 
│  ├─ 6: [value:77.0, length:0.6] 
│  │  ├─ 7: [length:0.4] label:"C"
│  │  └─ 8: [length:0.5] label:"D"
│  └─ 9: [length:0.7] label:"E"
└─ 10: [length:0.9] label:"F"

julia> tree[3]
Dict{Symbol, Any} with 1 entry:
  :label => "A"

julia> tree[5,6]
Dict{Symbol, Any} with 2 entries:
  :value  => 77.0
  :length => 0.6

julia> findnodes(tree, :label => isequal("A"))
1-element Vector{Int64}:
 3

julia> findbranches(tree, :value => x -> x ≥ 90)
1-element Vector{Graphs.SimpleGraphs.SimpleEdge{Int64}}:
 Edge 1 => 2
 Edge 1 => 5

julia> @time big_tree = Newick.File("/path/to/big_tree") |> MetaPhylo.Tree{Int, UnRooted, ReRootable}
  3.394991 seconds (23.63 M allocations: 1.180 GiB, 32.24% gc time)
MetaPhylo.Tree with 54327 leaves.
    Rooted: false
    Rerootable: true

julia> freeze(big_tree)
MetaPhylo.StaticTree with 54327 leaves.
    Rooted: false
    branch_data: NamedTuple{(:length,), Tuple{Float64}}
    node_data: NamedTuple{(), Tuple{}}