Fix more imports

src/containers/containers.jl

@@ -10,6 +10,6 @@ include("fixed_blocks.jl")
 include("sequences.jl")
 import ..BuildingBlocks: ContainerBlock, get_children_blocks
 
-import ..FixedBlocks: FixedBlock
+import .FixedBlocks: FixedBlock
 import .Sequences: Sequence, FixedSequence
 end
\ No newline at end of file

src/containers/fixed_blocks.jl

@@ -5,7 +5,7 @@ import ...BuildingBlocks: ContainerBlock
 import ...Gradients: FixedGradient
 import ...Pulses: FixedPulse
 import ...Variables: duration, variables
-import ...WaitBlocks: WaitBlock
+import ...Wait: WaitBlock
 
 """
     FixedBlock(duration=nothing; pulse_delay=0., pulse=nothing, gradient_delay=0., gradient=nothing, readout_times=[])