v0.1.8

[#15] Adds required_args, optional_args to Directive

v0.1.7

#14 - Adds directives

v0.1.6

[#12] - Add list? and unwrap_list

v0.1.5

#4 - Adds types_by_name
#5 - Adds fields_by_name

v0.1.4

#10 - Reverts Sort Input Fields by Name

v0.1.3

[#7] - Sort Input Fields by name
[#8] - Add to_h to expose data hash
[#9] - Fix TypeDefinition#fields for types without fields (e.g. union)

v0.1.2

• [#6] - Add description method to types that support it